Jump into the moat and go to the left, following it back to the drawbridge. Retrace your steps to Blackmarsh.

Go up the steps to the right. Follow the cave back over the bridge and out into the open area. Go to the left and through the door to The Mill.

Go forward, dive down into the pond, and follow the path before you. To get up onto the outcropping with the Chaos Device, stand on the bush and run diagonally (forward and strafe left at same time), jumping at the last second. Grab weapon #2 behind the tree, too.

Follow the cave under the outcrop to an open area with 2 teleporters. Go to the teleporter on the left to get to the mill. Go up the ramp and through the door. Go to the back of the gear to grind the bones to dust. Go back outside to collect the dust.

Go through the teleporter and then through the second teleporter outside. Hit the switch by the bell to open the underground passage. Follow the passage to the door leading back to Blackmarsh. Go through.

Retrace your steps to the Wizard's Lab. Walk into the gold pool to make the potion. Collect it and go through the door to Barbican.

Go through the cave, past the catapult, and into the castle as before. Retrace your steps to the secret leading to the useable crossbow, but take the door to the left of the secret passage.

Go up the stairs and hit the lever to activate the drawbridge. Go up the ramp to a room with a Tomb of Power and a cauldron. Drop through the hole in the floor and go through the door in front of you.

Follow the passage to a room with an Archer Lord & some broken stairs. Push an iron barrel to the broken stairs and climb up. Go through the passage to your left.

Open the window and watch the spiders drown. Drop into the moat and go right. Swim up to the mithril door on the left to transform it to wood. Break the wood and claim the castle key.

Swim to the left and get the ring of water breathing. Follow the moat to the drawbridge (which is now open).

Cross the drawbridge and follow the passage to the open market area. Go right to find the castle entrance. Unlock the doors and go through the doors to the King's Court.

Walk around the courtyard TO THE LEFT of the tower (more on this below) and down the hall to a 4-way intersection (there should be a butcher's sign in front of you).

Go left (when facing the sign) and keep going straight until you find the door to the Stables. Enter it.

Go forward through the double doors and follow the hall until you see a big wooden door to the right. Go through it. Go straight ahead and smash your way through the hay bails. Find the diary that reads: "They took the castle by storm so many died, but I was able to bury the key by the tree and forge." This is a clue about where the treasury key is.

Note: The diary and treasury key have been known to be elsewhere. Upon entering the King's Court from Barbican, if you walk to the left of the tower, the diary will be in the stables and the key will be in the yard by the forge. If you walk to the right of the tower AND toward the magical barrier, the diary will appear in the butcher's basement AFTER you have gone into the Inner Courtyard and dropped the guillotine blade. If the diary is found in the butcher's basement, the note will say that the key is buried "where the water runs upward", meaning the fountain in the Palace courtyard. If you walk to the right of the tower upon entering the King's Court, but don't walk toward the magical barrier, the diary will be found in Anton's cell in the dungeon under the guillotine, and the key will be located near Anton's grave outside the tombstone maker's shop in the Inner Courtyard. This walkthrough has been written assuming that the diary is in the first location listed above.

Go back into stables area and walk forward until you see a bunch of haybails and a ladder leading up to a loft on your right. Jump up on the hay and climb the ladder. At the top, when you're facing the ladder there's a passage to the right leading to some ramps. Climb the ramps ALL the way to the top and open the secret door.

Hop across the rafters to a wooden door on the right. Open it and throw the switch in the little room on the other side. Hop down and grab the shovel.

Turn around and walk forward, dropping back down into the stables. Turn left, walk a few steps, then turn right. Follow the hall in front of you to the forge's lawn. If you found the diary in the stables, walk to the left of the tree to get the treasure key.

Retrace your steps back to the start of the area and enter the door to the King's Court.