Far away, on a distant planet, two young aliens meet - and fall in love.
But Janet is a Smed. Bill is a Smoo. And everyone knows that Smeds and Smoos can't be friends. What will their families do when they find out?
Gruffalo creators Julia Donaldson and Axel Scheffler soar into space with this joyous tale of star-crossed aliens. Prepare for dazzling rhymes, hilarious pictures - and a love story that's out of this world.