Ice Forge CR 2
NE haunt (5ft. by 10 ft. forge), persistent
Caster Level 2nd
Notice Perception DC 20 (the old forge is covered with ice which extends over those that touch it)
hp 9; Trigger touch; Reset 1 week
When the haunt is triggered, the ice extends from the forge and freezes any metal the creature possesses. A creatures carrying metal when touching the forge takes damage as per the chill metal spell (DC 13).
A fire must be lit in the forge and maintained for a full week. This requires a Survival check (DC 13) every hour as the ice on the forge constantly reforms.
Book of Beasts: Monsters of the River Nations, copyright 2010 Jon Brazer Enterprises; Author Steven Helt.