One, two, peek-a-boo! I may be small but I'm not a runt. I am baby... An interactive book for toddlers, filled with riddles about the zoo. The correct answer makes the stanza rhyme.One, two, peek-a-boo! I may be small but I'm not a runt. I am baby... An interactive book for toddlers, filled with riddles about the zoo. The correct answer makes the stanza rhyme.