Problem: Cult members can't use the rune to see ghosts, then beat ghosts over the head. it was being intercepted by _onclick and processed there and only displaying an angry red notice
that you hit that ghost. Ghost didn't become visible, it disappeared soon after moving off the rune.
Solution: Made an attackby for ghosts to check when they are being beat up by cultist with books, now they appear.
Minor feature change: Now if a visible ghost gets hit it will give a different message than the standard "Ghost is pulled through from the other side".