i have searched all over Maxos Temple and cant find anywhere to access this island that everyone else seems to be able to find no problem.Actually, problems with Amdusias are one of the more common sources of posts in the forum.
There is no manual / configurable trajectory for bows.
In Maxos temple you need to read the book that the librarian gave you in return for finding the book he was looking for. That and a couple ingredients (scales and blood) will turn Amdusias human.
Your first encounter on sentinel island you can mindread to go up a level, so the higher level you are (I made it to level 18 in the fjords) the more of an experience bonus that will be. You don't need to get to a high level, but it would be better if you got to a new level before entering, to get a full level bonus.
Help on Killing Amdusias. Any tips would be nice.