They came from Class 6C (Collins Big Cat)
By Tommy Donbavand.
Description
Robbie and Jenna have a problem - Tiddles, the class hamster, has eaten their teacher! As the two friends stumble upon more overgrown and threatening school animals, they start to discover that all is not as it seems in their school, and something desperately needs to be done. - from Amzon
ISBN(s)
0007465467, 9780007465460