While his widowed mother continues to search for him, eleven-year-old Tom, presumed dead after drifting away down a river, finds himself trapped in a series of underground caves with another survivor and a dog, and pursued by murderous treasure-hunters.
General Note
"This edition is available for distribution only through the school market."--P. [4] of cover.
'First Scholastic printing, March 2009"--T.p. verso.
Reprint: Originally published: New York : Random House, c2007.