The fourth title in this popular series about Lily and her loveable toy, Blue Kangaroo Lily and Blue Kangaroo are the best of friends and when Lily doesn`t know what to do next she often asks, `What shall we do, Blue Kangaroo?` But Blue Kangaroo doesn`t always know, so he says nothing. But one day, in a crisis, Blue Kangaroo has to work out what to do all by himself!