  Throughout the world you may come across structuctures housing an unpleasant magical opponent.
<~><~>  These wayward magicians may hold some secrets in the form of Spell Pages, Spell Notes, or Spell Modifier Scrolls.
<~><~>  There appear to be sixteen variants of these structures, each relating to a different element of magic. It also appears to reliably contain helpful objects such as a Podium of some variety, a Crystal, and sometimes a Mortar & Pestle or Brazier.