You are actually in Nud-Melek when u do this, you are going down the stairs in the 2nd hall where you did a book quest that involved fighting the Pulpum Foe Flayers and the Flank Defenders but what you do is go down a kind of tunnel to the left and its a dead end and low and behold you are at Budkhul Beken at the 10.8S, 103.2 W looking over a railing:) and it turns into Redhorn at that point. but you are still actually in Nud Melek. good luck:) took me forever but with these notes you should be able to go faster lol.