A group that, true to it's name, is a family! And untrue to it's name, it is not involved with the mafia or any other form or organized crime, it just has an unfortunate name.
The Rusthooks, in their prime, were a group that specialized in exploring Myosotis and reporting whatever they find to Zephyr, their leader, financial benefactor, grandfather to some, founder and relatively infamous chimera.
The group was very successful at it's height, being given loads of support by Zephyr before violently being destroyed by the one who founded the group after a disagreement with one of the members.
Nowadays the group is inactive and doesn't exist anymore, but it's members try their best to stay in contact (they're family, after all!)