Adventure of the Engineer's Thumb

When Mr. Victor Hatherly enters Dr. Watson's office with a missing thumb, he says the story is so unbelievable he can't go to the police. So, Watson brings Hatherly to Holmes who can solve unsolvable cases. Join Holmes and Watson on the hunt for the engineer's thumb. Aligned to Common Core Standards and correlated to state standards. Graphic Planet is an imprint of Magic Wagon, a division of ABDO.