Castle Storm

In the land of Welkin, ruled over by the iron paw of vicious
stoats, Sylver – the leader of a band of outlaw weasels – is
on a quest: to find the humans who abandoned the land
many years ago and bring them back to Welkin. With his
small company of weasels, he journeys south, through myriad
adventures, in search of an ancient castle wherein lies the
clue he seeks – Castle Storm.
And meanwhile, in the north, Welkin itself is under threat.
For hundreds and thousands of rats are pouring down from
their marshland home in a bloodthirsty horde to seize power
from the stoats.,.
The second title in a dramatic and marvellously inventive
series, The Welkin Weasels.