Note: This information was taken from TSR's original AD&D adventure, the Temple of Elemental Evil.
For the DM: In this area live four trolls, sentries for the troops of the Great Temple and personal guardians of their commanders. Two will be here at all times, and all are present at night.

The trolls' bedding is piled in the northeast corner of the area, along with 4 small chests. The trolls drag out their bedding at sleeping times, and keep all their valuables in their locked chests; each has a key. Inside each chest are 10 cp, 19 sp, 16 ep, 15 gp, and 1-4 gems of pure black tourmaline (worth 500 gp each). One troll also has a figurine, an ebony fly -- which is cursed to become a Chasme after the seventh round of its seventh use.

The east wall is covered by a huge tapestry which depicts a great battle, apparently between the forces of Good and Evil. Therein, shining humans and winged humanoids are being blasted to the ground by magical rays issuing forth from the eyes of a gigantic, rotund, wrinkled face. The tapestry conceals a normal-sized but stoutly reinforced iron-bound door. The trolls have no keys. A corridor about 10 feet wide and 15 feet high slants off to the southeast.

Trolls (4): AC 4, MV 12", HD 6 + 6, hp 42, 38, 35, 30,
#AT 3, D 5-8/5-8/2-12, SD regenerates (3 hp per round
starting 3 rounds after being damaged); AL CE, SZ L (9'),
XP 861, 829, 805, 765 (525 +8/hp)