Attack Skill +1 или Basic Archery?

I'm not entirely sure, but if this is what I think it is, you should take a different approach. Is your goal in this mission to acquire one of the Anduran artifacts? If so, you need to cross the sea to the Necromancer's castle and capture it with the help of these elves. To do this, you need to find a scroll with the spell "spatial gate/teleport/dimension door" and find a point from which you can jump to the Necromancer's island.