To complete the orc chasm you must dress in the pirate outfit and then go to the pirates cove......keep adventuring there until you find an abridged dictionary...then take it to the untinker and you will recieve a bridge and a dictionary..you should keep both of these items...use the bridge and then you will be able to access the chasm
After going there you must find 3 sets of scrolls....i cant remember the numbers right now but you should get one around 300 (334) and two around 30000 (30669 and 33398) and....combine the two around 30000 to get the 64067 scroll and then combine two of the lower numbered scroll to get the 668 scroll....then combine the scrolls you get out of that to get the scroll you need, the 64735 scroll...use that scroll and you will be transported to the baron...if you have a dictionary with you then you will complete the quest