The hilarious children's book from No. 1 bestselling author David Walliams.

WELCOME TO THE ISLE OF MULCH...

This little island is home to a large number of horrible grown-ups. The school, the local park, the toy shop and even the island's ice-cream van are all run by awful adults who like nothing more than making children miserable. And the island is owned by the most awful one of all - Aunt Greta Greed!

Something needs to be done about them.

But who could be brave enough?

Meet Ned - an extraordinary boy with a special power. SLIMEPOWER!