Mika has fallen out of his spaceship and landed upside down in an apple tree in Joe's garden. It's hard to say which of them is more surprised, Joe or Mika. But as they talk they discover how alike they are, and begin to work out where they both came from and how life began.
And when Mika vanishes, as mysteriously as he came, Joe finds that he has a new baby brother - a new being as astonished at life on earth as Mika himself was.
Hens, dinosaurs, an astronaut and a white rabbit all have a part to play in this magical, mindblowing story for children that opens up the wonders of the universe.
