Buy new:
-20% $8.79
FREE delivery Sunday, August 4 on orders shipped by Amazon over $35
Ships from: Amazon.com
Sold by: Amazon.com
$8.79 with 20 percent savings
List Price: $10.99

The List Price is the suggested retail price of a new product as provided by a manufacturer, supplier, or seller. Except for books, Amazon will display a List Price if the product was purchased by customers on Amazon or offered by other retailers at or above the List Price in at least the past 90 days. List prices may not necessarily reflect the product's prevailing market price.
Learn more
FREE pickup Sunday, August 4 on orders shipped by Amazon over $35
Or fastest pickup Thursday, August 1. Order within 4 hrs 40 mins

1.27 mi | ASHBURN 20147

How pickup works
Pick up from nearby pickup location
Step 1: Place Your Order
Select the “Pickup” option on the product page or during checkout.
Step 2: Receive Notification
Once your package is ready for pickup, you'll receive an email and app notification.
Step 3: Pick up
Bring your order ID or pickup code (if applicable) to your chosen pickup location to pick up your package.
In Stock
$$8.79 () Includes selected options. Includes initial monthly payment and selected options. Details
Price
Subtotal
$$8.79
Subtotal
Initial payment breakdown
Shipping cost, delivery date, and order total (including tax) shown at checkout.
Sold by
Amazon.com
Sold by
Amazon.com
Returns
30-day refund/replacement
30-day refund/replacement
Returnable Yes
Resolutions Eligible for refund or replacement
Return Window 30 days from delivery
Refund Timelines Typically, an advance refund will be issued within 24 hours of a drop-off or pick-up. For returns that require physical verification, refund issuance may take up to 30 days after drop-off or pick up. Where an advance refund is issued, we will re-charge your payment method if we do not receive the correct item in original condition. See details here.
Late fee A late fee of 20% of the item price will apply if you complete the drop off or pick up after the ‘Return By Date’.
Restocking fee A restocking fee may apply if the item is not returned in original condition and original packaging, or is damaged or missing parts for reasons not due to Amazon or seller error. See details here.
Returns
30-day refund/replacement
Returnable Yes
Resolutions Eligible for refund or replacement
Return Window 30 days from delivery
Refund Timelines Typically, an advance refund will be issued within 24 hours of a drop-off or pick-up. For returns that require physical verification, refund issuance may take up to 30 days after drop-off or pick up. Where an advance refund is issued, we will re-charge your payment method if we do not receive the correct item in original condition. See details here.
Late fee A late fee of 20% of the item price will apply if you complete the drop off or pick up after the ‘Return By Date’.
Restocking fee A restocking fee may apply if the item is not returned in original condition and original packaging, or is damaged or missing parts for reasons not due to Amazon or seller error. See details here.

Return instructions

Item must be in original condition and packaging along with tag, accessories, manuals, and inserts. Unlock any electronic device, delete your account and remove all personal information.
Read full return policy
Payment
Secure transaction
Your transaction is secure
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
Payment
Secure transaction
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
Kindle app logo image

Download the free Kindle app and start reading Kindle books instantly on your smartphone, tablet, or computer - no Kindle device required.

Read instantly on your browser with Kindle for Web.

Using your mobile phone camera - scan the code below and download the Kindle app.

QR code to download the Kindle App

Follow the author

Something went wrong. Please try your request again later.

The Trials of Apollo: Camp Jupiter Classified-An Official Rick Riordan Companion Book: A Probatio's Journal Hardcover – Illustrated, May 5, 2020


{"desktop_buybox_group_1":[{"displayPrice":"$8.79","priceAmount":8.79,"currencySymbol":"$","integerValue":"8","decimalSeparator":".","fractionalValue":"79","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"P4JuOgzuWJmz%2BeqEmFK47oCWi1LiOhVt8M5uvxU9EZSv%2F1zQv5MiUK7aMiNLbXYGWbTuOtPz8cpStpbiRd%2B99dgMWNwLujjPWPHEWPX8Z68tpHUZLU8Fc%2Fn3dtu6N7uND8o7MlyLRl3o5CTGCF%2Bqvg%3D%3D","locale":"en-US","buyingOptionType":"NEW","aapiBuyingOptionIndex":0}, {"displayPrice":"$8.35","priceAmount":8.35,"currencySymbol":"$","integerValue":"8","decimalSeparator":".","fractionalValue":"35","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"P4JuOgzuWJmz%2BeqEmFK47oCWi1LiOhVt5oA%2BEhIAEmP1xxkXf2z6VqD7023l1Wmx065zW95UPlSGf6FdK41cCq1mJInJ08Ah22fCt4zB56siotCco4wkarxtt38fvjLAUtS16l8gdV%2B1ezH1uA7b5mfdgIoWZgX0pZzmaTK6D1vKfAhf0wdYhxBe0RomVseA","locale":"en-US","buyingOptionType":"USED","aapiBuyingOptionIndex":1}],"desktop_buybox_group_2":[{"displayPrice":"$8.79","priceAmount":8.79,"currencySymbol":"$","integerValue":"8","decimalSeparator":".","fractionalValue":"79","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"P4JuOgzuWJmz%2BeqEmFK47oCWi1LiOhVt8M5uvxU9EZSv%2F1zQv5MiUK7aMiNLbXYGWbTuOtPz8cpStpbiRd%2B99dgMWNwLujjPWPHEWPX8Z68tpHUZLU8Fc%2Fn3dtu6N7uND8o7MlyLRl3o5CTGCF%2Bqvg%3D%3D","locale":"en-US","buyingOptionType":"PICKUP","aapiBuyingOptionIndex":2}]}

Purchase options and add-ons

In this companion book to Rick Riordan's best-selling Trials of Apollo series, bizarre things are happening throughout Camp Jupiter.




To find out why, readers can consult the pages of this camper's journal, which reveals the secrets of the Roman demigods' training ground.




It's the February after Gaea's defeat, and mysterious incidents are wreaking havoc throughout Camp Jupiter. If the Romans don't figure out who--or what--is behind the episodes soon, the Twelfth Legion could implode.



Suspicion falls on Claudia, the Fourth Cohort's newest
probatio. After all, the mischief started shortly after she stumbled into camp. Plus, she's a daughter of Mercury, the god of thieves and tricksters.




To find out whether she's guilty or innocent, readers can delve into the pages of Claudia's personal journal.




Through her eyewitness accounts, they will visit the crime scenes--a row of seats in the Coliseum, an underground aqueduct tunnel, the strange staircase at the back of the principia--and see the bizarre events unfold. They'll be right alongside Claudia when she discovers a secret so ancient that not even the lares know about it . . . a secret that holds the key to Camp Jupiter's safety.

The Amazon Book Review
The Amazon Book Review
Book recommendations, author interviews, editors' picks, and more. Read it now.

Frequently bought together

This item: The Trials of Apollo: Camp Jupiter Classified-An Official Rick Riordan Companion Book: A Probatio's Journal
$8.79
Get it as soon as Sunday, Aug 4
In Stock
Ships from and sold by Amazon.com.
+
$8.50
Get it as soon as Sunday, Aug 4
In Stock
Ships from and sold by Amazon.com.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
Choose items to buy together.

From the Publisher

1
2
3
4
1 2 3 4 5
Camp Half-Blood Confidential: Your Real Guide to the Demigod Training Camp Brooklyn House Magician's Manual Magnus Chase: Hotel Valhalla 9 From the Nine Worlds Percy Jackson and the Olympians: The Lightning Thief
Customer Reviews
4.8 out of 5 stars
4,259
4.7 out of 5 stars
978
4.7 out of 5 stars
2,366
4.7 out of 5 stars
4,467
4.8 out of 5 stars
1,297
Price $8.49 $8.99 $7.30 $6.33 $68.99
Discover More Rick Riordan! In this entertaining guidebook, a companion to Rick Riordan's Percy Jackson, Heroes of Olympus, and Trials of Apollo series, Percy and his demigod friends offer newbies an insider's look at Camp Half-Blood, bug juice and all. Calling all young magicians of Egypt! If the blood of the pharaohs runs in your veins, you can't afford to be without this guide to Ancient Egyptian deities and creatures, and Carter and Sadie Kane's world of magic. A can't-live-without guide for guests of the Hotel Valhalla, this volume contains facts about the Norse gods as well as other characters and creatures you might encounter if you are fortunate enough to be chosen as one of Odin’s brave warriors. Beloved characters from the Magnus Chase and the Gods of Asgard series star in these hilarious and imaginative new short stories, each set in a different one of the Nine Worlds from Norse mythology. This deluxe gift edition of the internationally best-selling first book in the Percy Jackson and the Olympians series, lavishly illustrated by series artist John Rocco, is a must-have for Riordan fans.

Editorial Reviews

About the Author

Rick Riordan, dubbed “storyteller of the gods” by Publishers Weekly, is the author of five #1 New York Times best-selling middle grade series with millions of copies sold throughout the world: Percy Jackson and the Olympians, The Heroes of Olympus, and the Trials of Apollo, based on Greek and Roman mythology; the Kane Chronicles, based on Ancient Egyptian mythology; and Magnus Chase and the Gods of Asgard, based on Norse mythology. Rick collaborated with illustrator John Rocco on two #1 New York Times best-selling collections of Greek myths for the whole family: Percy Jackson’s Greek Gods and Percy Jackson’s Greek Heroes. Rick is also the publisher of an imprint at Disney-Hyperion, Rick Riordan Presents, dedicated to finding other authors of highly entertaining fiction based on world cultures and mythologies. He lives in Boston, Massachusetts with his wife and two sons. Follow him on Twitter at @camphalfblood.

Product details

  • Publisher ‏ : ‎ Disney Hyperion; Illustrated edition (May 5, 2020)
  • Language ‏ : ‎ English
  • Hardcover ‏ : ‎ 176 pages
  • ISBN-10 ‏ : ‎ 136802405X
  • ISBN-13 ‏ : ‎ 978-1368024051
  • Reading age ‏ : ‎ 8 - 12 years
  • Grade level ‏ : ‎ 3 - 7
  • Item Weight ‏ : ‎ 2.31 pounds
  • Dimensions ‏ : ‎ 5.06 x 0.64 x 8.02 inches
  • Customer Reviews:

About the author

Follow authors to get new release updates, plus improved recommendations.
Rick Riordan
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.

Rick Riordan is the #1 New York Times bestselling author of the Percy Jackson and the Olympians series, the Kane Chronicles, and the Heroes of Olympus. He is also the author of the multi-award-winning Tres Navarre mystery series for adults.

For fifteen years, Rick taught English and history at public and private middle schools in the San Francisco Bay Area and in Texas. In 2002, Saint Mary's Hall honored him with the school's first Master Teacher Award.

While teaching full time, Riordan began writing mystery novels for grownups. His Tres Navarre series went on to win the top three national awards in the mystery genre - the Edgar, the Anthony and the Shamus. Riordan turned to children's fiction when he started The Lightning Thief as a bedtime story for his oldest son.

Today over 35 million copies of his Percy Jackson, Kane Chronicles, and Heroes of Olympus books are in print in the United States, and rights have been sold into more than 35 countries. Rick is also the author of The 39 Clues: The Maze of Bones, another #1 New York Times bestseller.

Rick Riordan now writes full-time. He lives in Boston with his wife and two sons.

Customer reviews

4.8 out of 5 stars
1,807 global ratings

Top reviews from the United States

Reviewed in the United States on September 19, 2020
I bought this along with the Demigod Files, Confidential Guide to Camp Half-Blood and the Demigid Diaries, and while I agree with some reviews that these aren't as spectacular as an Athena-worthy battle strategy (kidding), or an Apollonian sonnet (Definitely Kidding!) I will call them entertaining, and, if you're a fan of the main series, great additions to your bookcase.
Furthermore, and not to cross universes, but they remind me of the Fantastic Beasts and Quidditch Through the Ages entries, from the Wizarding World; definitely worth the purchase in order to complete your collection.
I'm also ecstatic to find that I received a first edition copy, not that I would ever dream of parting with it. After all, I don't much fancy traversing the western demigod camp without it!
7 people found this helpful
Report
Reviewed in the United States on April 5, 2022
Very good bookto read
Reviewed in the United States on June 24, 2020
My son loved it. Wonderful present for christmas,brithday present,.... My son thinks you (Rick riordan) should create a series called probatios journal and this is the first book in the series.
6 people found this helpful
Report
Reviewed in the United States on January 1, 2021
Unlike Riordan's other books, this has a really nice mystery element to it and Claudia is such a fun character. Thanks for the fun, Uncle Rick!
Reviewed in the United States on June 20, 2024
Good book
Reviewed in the United States on June 5, 2021
If you love Greek Mythology. You will love this book .
Reviewed in the United States on May 8, 2020
This is the best book ever I'm very glad I bought it and I can't wait for the new trials of Apollo (-:
8 people found this helpful
Report
Reviewed in the United States on May 14, 2020
This book was pretty good. It has many surprises, twist and turns. It helps you now more about Camp Jupiter.
8 people found this helpful
Report

Top reviews from other countries

Bruno Ricardo Moreno García
5.0 out of 5 stars Genial
Reviewed in Mexico on March 26, 2024
Bastante bien para completar la saga
Roberto F Batista
5.0 out of 5 stars Good to see the Camp Jupiter again
Reviewed in Brazil on December 22, 2022
While the history is short, it provides a good taste of the daily routine in Camp Jupiter and a lot of fun. The only drawback is that now I want to see more of Camp Jupiter and don't see any new book in the horizon.
Isabel
5.0 out of 5 stars Rick Riordan one of the best authors i ever had read
Reviewed in Spain on March 23, 2022
Is a fantastic book full of very funny stories and adventure.
Grace
5.0 out of 5 stars Good book for young readers
Reviewed in Canada on June 26, 2020
Great book really funny story perfect for young readers who like science fiction, was shipt in good condition and got here really fast Rick Riordan is an awesome author
2 people found this helpful
Report
Kye brown
5.0 out of 5 stars Great series of books
Reviewed in the United Kingdom on March 30, 2021
Good book. Series of books are a great read.
One person found this helpful
Report