READ BY JOANNA LUMLEY. The fourth title in this popular series about Lily and her loveable toy, Blue Kangaroo READ BY JOANNA LUMLEY. 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!