INFRAVISION

Infravision lets you see heat sources in the dark.  It's like magic but 
sometimes it's not magic.  Let me explain.  There are spells like CRYSTAL EYES 
and TRUE SEEING that impart infravision.  That's magic.  But some races are 
just born with the ability and that's not magic.

See Also: "TRUE SEEING", "SENSE HIDDEN LIFE", MAGIC, "BIND SOUL", "CRYSTAL EYES"
          SEEING