Children love inventing riddles and trying them out on each other, and with this one, they'll be thinking up similes, describing words, verbs and more without even realizing it. Then - hey presto! - they've written a richly expressive poem, stretching their literacy skills, while having great fun. As for the answer, that could be written in tiny writing, back to front, at the bottom, the prompt suggests. The forest theme will also nurture an appreciation of the environment and its creatures.