Bound to gifts

Michael reached into the pocket of his jacket and produced a small vial, capped at one end. "It's extract of St. Mary's Thistle," he said. "They use it in a lot of hospitals in Europe, for mushroom poisoning. Theoretically, it should do quite a bit to help a poisoning victim survive. Provided it's taken in time, of course."
Lea's eyes narrowed. "Give it to me. Now."
I tsked. "Godmother. As your faithful pet and companion, I feel I should warn you about how dangerous it is for one of the high sidhe to accept gifts. It could bind you to the giver if you don't return a gift in kind."


Grave Peril Chapter 33, Page 368