Gustav Is Missing!

A story of friendship and bravery, featuring a little mushroom who sets off into the scary world to find his missing pet slug.Oh, no! When mushroom boy Little Cap's pet slug, Gustav, goes missing, Little Cap is beside himself. How can he summon the courage to leave his cozy home to find him? But summon he does. There are many suspicious characters just outside his door and-- gasp!-- he has to talk to his neighbors, but Little Cap can't be stopped.