I have killed sleeping ghost near lever that lowers main drawbridge.Now how can i complete this quest.I have camed again but ghost not appears.Maybe this was not main draw bridge.Please help.

The goal of the quest is not to kill the ghost, but to lower the drawbridge. Ok, you´re told not to disturb the ghost but whether you kill him or not doesnt make any difference... Just pull the lever and lower the drawbridge, then return to Ishad Nah and enter the Bushi Dojo. Select your character who wants to become a ninja and the guildmaster will promote him. At least thats what I did =)

Welcome to the board, Akhsar!!!

Just get that drawbridge lowered and you've got the quest solved!

Wyv