Hamster Holmes and his firefly sidekick, Dr. Watt, solve mysteries together in this start to a Level 2 Ready-to-Read series Hamster Holmes and Dr. Watt are the best sleuths in town So when their friend Corny O'Squirrel has a mystery he needs help solving, he knows just who to turn to. Every night, Corny is woken up by someone knocking on his door--but when he goes to answer, no one is there Can Hamster Holmes and Dr. Watt catch the culprit?