Easy treasure
It is possible to save just before entering a level in order to load and reload that next level to hunt for valuable items. The best item to hunt for is a Wand Of Clone Monster. Save a few Wands Of Clone Monster. When you get to the levels with Hrungnir in Castle 1, or the Giant Kings in Castle 2, clone off the Giants however many at a time you can without getting killed in the process. When you kill off the cloned Giant Kings, you will get enormous amounts of treasure.