"Be careful,” said Matilda. "Do not buy a pig in a poke.” "What’s a poke?” asked Darwin. Yes, what is a poke? And why would Waltur, a bear, buy a pig, anyway? Together with the help of his best friends, Matilda and Darwin, Waltur is about to find out the wisdom of Matilda’s words. Through trial and error, he will also learn the truths behind two other funny old sayings: "Don’t count your chickens before they hatch” (why not?) and "You can lead a horse to water but you can’t make it drink” (wanna bet?).