Ali has just moved into Lever Tower with his mum. He soon meets Caitlin, Gez and an Alsatian called Falcon. Together they set out to discover why the foxes have disappeared from the area, why the owls have appeared, and why Miss Osborne has vanished... With the help of his friends and Caitlin's dad, Ali and his mum begin to feel happy in their new life without Ali's dad.
