From www.graffe.com
Quote:
The last quest requires you to complete Calling in the Forest to advance (Nektropos access quest) and rewards you with a choice of nice weapons after killing Lord Everling. If you have already done Calling before getting the 4th quest (like me) you will not be able to complete the 4th quest without a patch.
'Scrawlings in the Dark' is the first quest of them all and can be started at lvl 15.
Get busy folks!