The Concept: an ex-insect shaman.
When the insect shaman's queen dies, the insect shaman loses all magical
abilities and becomes mundane thereafter.
Such a character may or may not regain what passes for sanity, but they'd
have a good background in magic which would make them a good excuse for a
magic-savvy if secretive PC or NPC. Bonus: they still have a chance to summon
and bind free spirits, especially free insect spirits.
If an ex-insect shaman manages, somehow, to bind a free Queen Spirit, they
can use her as their personal totem, regaining their full magical abilities.
This time, however, they won't fall into the same trap that almost destroyed
If an ex-insect shaman joins the Aleph Society, they also regain their magical
abilities...and now have access to the Sacrificing metamagic as well. An ex-insect
shaman would be ideal at dealing with a dark spirit like Gaf, because they've
got plenty of experience dealing with the like.