Crossroads of Fate
What our friends know of Twig is that he is leader of the Rats, perhaps because he is purported to have killed a member of a large established gang, the Scorpions. Under a charm spell, however, he revealed that while it was true, that he was very lucky to have done it and hopes the Scorpions don’t know it was him.
Twig is familiar enough with Mama Nettie to have recommended her as a healer. It’s possible that he knew what price she exacted for her services.