From the start, walk ahead and jump down into the water as soon as you can. Run around dodging the gargoyles, and pick up all items. Be sure not to miss the quiver of crossbow bolts and the Tome of Power. Once done with collecting, duck into the cave, where you can get a Crossbow. Make sure you get rid of the critters in your immediate vicinity, because as soon as you touch the Yellow Key, you'll get an Iron Lich to fight. Once you're done with him grab the Dragon's Claw, then use the teleport in the water to get back to the start point.

Getting back to the start, this time walk the corridor to its end, ready your Dragon's Claw, and open the Yellow Door. If you don't feel up to fighting up to a dozen Sabreclaws and Weredragons at once, watch out you don't venture to the far side of the room, this way the critters in the back might not see you. Once done, throw the switches and get out into the next corridor.

For the first run, just clear out the corridor and get to its other end.Watch for those banners on the wall, between them is a hidden entrance to a secret corridor. Duck in there and start the cleanup with the Ophidians in there, and then with the ones outside (it's always easier dodging shots of enemies you can see).

Throw the switches you find in the corridor, and by the time you're finished with them you can get back to the first hallway and grab the Green Key. Before you open that door though, we're going to collect some more goodies.

From the point where you got the last key, look for the 2nd opening on your right. There's a Tome of Power, and if you jump into a small, walled-off part of the water, you can find a secret door on the western wall (just push around until you find it). In there's a Ring of Invulnerability and a teleport that brings you up to a ledge for a Hellstaff and some ammo.

Time to use the newly risen bridge to get over to the other side of the water. After a couple of steps, a wall will lower and give you access to a tunnel with a couple of Weredragons, leading back to the room behind the Yellow Door - with the difference there is now a hidden alcove revealed, with a Bag of Holding in it.

Get back to the ledge and clean out the Golems. You'll see a Phoenix Rod on a pedestal, be prepared before you take it, on both sides doors will open and you get company in the form of Disciples of D'Sparil.

Now you should be equipped sufficiently for the adversaries waiting for you behind the Green Door. The first big one is a Maulotaur, if you have the Ring, a Tome and the Phoenix Rod, you'll have an easy job, just activate the first 2 and fry him with the 3rd. There are some - relatively - minor critters around like Ophidians and maybe Disciples, just take them out in the same turn.

Once done, hit the switch at the back of the (wet) courtyard. Now you can climb the stairs for the Blue Key. As soon as you get there, the water level in the courtyard will significantly decrease, revealing a hidden room with the Wings of Wrath and some advanced weaponry, plus a couple of Iron Liches to kill the time with.

Once you had enough fun, go to the Blue Door and open it. Some more lizard boys to crush under your heels and you're home free. From the antechamber of the exit teleport you can acess an underground corridor leading back to the cave where you got the Yellow Key. If you go that far, you can get some new playmates and stuff to pick up. From the same corridor, you can also access a lift that takes you up to the room with all those Time Bombs (now towards the end of the level rather of limited use).

Note: After getting the Green Key, you can take things in any order you want. One of the times I played the map I opened the door right away and let the Maulotaur chase me up the corridor all the way to the Yellow Door room. There I dodged him and went down to the courtyard, threw the switch, grabbed the Blue Key and went right to the tunnel with the Weredragons. After busting them all I suddenly found myself face-to-snout with the Maulotaur. I turned around and ran down to the pedestal with the Phoenix Rod, and then went back to the courtyard behind the Green Door and finished the critters there, then got behind the Blue Door and cleared out the exit path, and from there came back to the pedestal and then jumped down into the water for some health vials. At the vicinity of the cave entry I turned around and guess who was breathing down my neck... :)

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