Triangle Tower Quest

Name: Triangle Tower Quest.
Location: Triangle Tower (south of Dwarven Bridge)
Reward: Garlic Necklace, Dwarven Ring, 2x Small Sapphire.
Monsters: Dwarf Geomancer, Monk, Skeleton, Stalker, Witch, Demon Skeleton, Ghoul.

This quest is located in Triangle Tower, near Thais.

There are a couple of skeletons on the surface that shouldn't cause any problems.

Floors:

1. The second floor is inhabited by 4 Ghouls.
2. The next floor is already inhabited by 3 Demon Skeletons. On the third floor it gets dangerous.
3. This floor is overrun by 2 Demon Skeletons, 2 Ghouls and 2 Stalkers, which is an additional obstacle. There is a Magical Watch here (behind the door), which we have to take when doing What a Foolish Quest.
4. The last floor is occupied by the strongest of the dwarfs - Dwarf Geomancer, a swamp Witch - and one of the enemy Monks. The reward box is located by the eastern wall.

Tips:

It's worth investing in an Invisible spell or using a special ring to deal with Demon Skeletons more easily.
On Stalkers it's worth taking a pair of GFB runes or finishing them off with waves.
Overall the quest is very difficult for its rewards: Garlic Necklace, Dwarven Ring, 2x Small Sapphire.