I Don't Like Spiders & Snakes
The Black Knights seemed like easy pickings, so perhaps it's time to head for the blackest knight of them all... Mordred (okay, so he wears gold armor). Mordred is holding up in the tower of the Castle of Sorrows, and the castle is not easy to get to. Your task in this level is to climb the Cliffs of Graeden and find the underground passage which leads to the castle.
Let yourself sink in the water so you can grab the 3x potion
The challenging method is to climb the cliffs, but the easy way to get up to Gabriel's Tower is to swim out towards the deep water (avoid the piranha) and swim into the underwater cave in the side of the cliff
If you climbed the cliffs, you'll pass by a future pod which you'll want to visit (if you came in the easy way, you'll want to climb down the cliffs just a tad to visit the pod)
I find that the crossbow is most effective with the spider scouts
In the tower, go through the 2nd door on the left (it's filled with barrels)
Stand back and shoot the barrels, and their explosion will take out the skull snakes
Directly to the right near the torch are two scrolls to read provide crucial hints
The section of floor which seems lit is a platform, take the platform down
Enter the pool of water and flip the switch on the wall to the right, then head back up the platform
The door at the end of the corridor is now opened, so go through it
Enter the maze and follow these steps: left, to end, then right, to end, then left, to end, then right, take very next right, to end, then right, to switch
Flip the switch to open the locked door across from the barrel room, then exit the maze, exit the barrel room and enter the room across the hall
Open the door, read the scroll on the right of the fireplace, then enter the fireplace (you may want to step back a little while you wait for the secret door to open so you don't burn)
Enter the secret room, grab the key, drink the potion, then get out (if the door closed, use the switch to re-open it)
From the hallway, head up the spiral staircase, out onto the porch, then run through the forest towards your right
Take the passage extending through the forest wall to a cliff area, then turn left and enter back into another forest area
Go to the furthest end of the forest area and you'll see a candleabra flickering through a transparent forest wall
Take the candleabra path to a pool of water
Hugging the wall, drop into the water, then step onto the platform in the center
When the platform gets to the top, you can jump across to the other side into the guard house
Head towards the front, then take the passage leading off to the left and follow that up the stairs
At the top of the stairs, turn left after the door and follow the corridor to the switch
Use your key to unlock the switch, and you've now opened up the grate in the underground passage leading to the Castle of Sorrows
Go back down to the lower floor, exit through the door opposite where you entered the guard house, and take the cobblestone path to the cliffs
Jump into the water and swim towards the left around the cliffs
Climb the rocks to the future pod in the cliff wall, and recharge and save
Jump back into the water towards the left, sink to the bottom and take the undergound path to the next level
Eye Candy / Extras
If you didn't come up through the underwater cave, then be sure to visit the 1st room on the left in Gabriel's Tower (half the room has been washed away and crumbled down the cliffs)
Across from the washed away room is a storage room containing a 2x potion (stand back because the barrels are exploding)
There is a magic staff and some enchanted water to be found in the maze, as well as a hidden pod which teleports you to the future pod in the Cliffs of Graeden (there's a second switch in the maze which opens the hidden pod)
After flipping the switch in the underground pool, you can swim through a tunnel which leads back up to the washed away room
After climbing the spiral staircase, enter the room at the end for a nice view (you'll also see the top of a future pod hinting at where the next future pod can be found)
From the porch area, run to the left around the wall and you'll find the future pod (terminal, save buffer and some ammo)
Careful of the water garden next to the porch, as it's infested with hungry piranha
After going through the forest path that leads out to the cliffs, you'll have another nice view, this time of the Cliffs of Graeden (and if you want, you can jump across to get to the future pod)
In the second forest area, near the beginning on the opposite side of a forest column is a hidden future pod chock full of ammo goodies (and a terminal)
When you drop into the pool of water after the candleabra, you can take a tunnel out to the ocean and play with the piranha if you like (or swim to the pod around the corner to the left)
In the guard house, there is a room in the front (on the left when facing the guard house from the garden) that holds an oxygen potion
In the view of the ocean, you'll notice a waterfall which starts upon opening the grate in the underground tunnel (must be some kind of land shift thing going on)