This book was published 2003 by Grosset & Dunlap .

Grosset & Dunlap creates high-quality books for young readers of any level. Focused on books for ages 0-12, Grosset offers a wide range of original fiction series, nonfiction titles, leveled readers, and licensed tie-ins to captivate every reader. The Unknown Adventurer is still believed to be at large in the wild.