[she's told him so many other things that it doesn't really bother her to just explain this piece of it.]

The Gauntlet of Shar. A series of trials, and at the end, a sacrifice. Traditionally a Selûnite warrior, though in recent years some have claimed any Selûnite will do.

[it was trapped, and dangerous, but somehow she doubts that was the whole thing.]

The person she wanted me to sacrifice was an aasimar. Do you know what that is? They're a little like angels - children of gods, partially immortal.