The dream to chase down a rainbow till the end is one many of us share. For Unidog, as soon as he saw such a sight after a long rainy day, the adventure was a go, after convincing his more sensible friend Owlguin of course! With his best friend by his side, the pair flew off to the start of the rainbow. But this adventure was not going to be as straight forward. To continue their adventure up the rainbow, Unidog and Owlguin must solve fun yet puzzling riddles. Join in the fun and make sure you help Unidog and Owlguin by having a go at these riddles yourself before turning the page! The best friends have each other to rely on, but will they ever see what is at the end of the rainbow? This fun, vivid and engaging book is a must-read. A sweet adventure to share together, and who knows what this adventure might lead to next.