Tanstafaal hears the voice but not the speaker. Telepathy, of course. Scrying? maybe. (int check to detect scrying, DC 10 (1d20+5)[22])

Let's take of usefull itens first, but we cannot take anything obviously asosciated to the Ultima Mother, with simbols and whatnot.

Tanstafaal let's go off the wall of chains and helps to drop the corpses cliffside. after that, he is ready to keep walking (no damage taken)