Yargh. I can kill the eyes without getting the wrathwing irrevocably stuck. The only problem I'm having is the wraithwing;
The problem is this; he starts at 1. If I go through the lower arrows, I can get him to 2. If I then go around the passage to the north, and go up the middle dead end, he'll go from 2 through 3 and 4 back to 1. And I can't pull him out of that path, because of the arrows. And at 1, I can't pull him down and out of that passage without going down to the lower arrows again. And if I pull him down lower than 2, without getting stuck, he then goes into that big open space in the middle as I try and get to him.
I figure I need to get him out of 1, but in the passage below 4, without being low enough to get into the east-west passage at the bottom, by the time I get around to that upper passage. And I can't see how to get him there; the only arrow I can catch him on is 2, and it will only let him go back to 1 through the force arrows.