Book Vault's Birthday Contest Riddle

This is the next leg of The Book Vault’s birthday book riddle contest! For more information on the contest, go here.
Each correct answer counts as an entry into the drawing on August 29th!
(Please enter by Aug 28th, midnight, EST)

Riddle: Falsely accused of a crime, this teenage boy is sent to a “camp” where he must dig a hole of specific dimensions each day. Is there more to this drill than the character-correcting & character-building that the warden claims it’s for?Which book is this?

Know the answer? Send Dominique an email at bookvault@yahoo.com with:

“BDAY CONTEST” in the subject line
and:
Name:
The Riddle: Falsely accused of a crime, this teenage boy is sent to a “camp” where he must dig a hole of specific dimensions each day. Is there more to this drill than the character-correcting & character-building that the warden claims it’s for?Which book is this?
Answer: (full book title + author)
The name of the site where you found the riddle: Liv’s Book Reviews
Your site’s URL: (if you have one)

Please send a separate email for each riddle you answer!

Good luck!!