NOTE: These directions may not be exact, but they will get you on the right track.

Answer…

To get up to Melgorhen's Reach…

climb platform

turn wheel

down

out

go bridge

east

east

east

go slope

west

arrange runes (when e is under z, push z; when e is under r, push s; when e is under o, push r; when e is under s, push o. Just keep doing this pattern until you see that all the stairs are in place.)

Go stair

west

close dam

wait for cab to arrive

open dam

go cab

wait till cab comes to a halt

out

go fog

climb vine

go opening

lay on the altar

go shaft

go open

lie down

to get out of the water slide, lean left on the first, third, fifth and seventh turns.