Guard monsters
--------------

Monsters are sometimes found guarding sublocations, such as a lairs,
caves, or graveyards.  These locations may be hidden, requiring the
noble to EXPLORE to find them.  Often these monsters will have some
rare or useful possession, or in some cases may have a prisoner.
Nobles who attack and defeat these monsters can expect to obtain the
monster's treasure.

Such treasures include:

	gold
	a quantity of some rare tradegood
	a magical artifact
	a book which teaches a rare skill
	a prisoner who is grateful for being rescued


