Fire trap creates a fiery explosion when an intruder opens the item that the trap wards. The fire trap can ward any closeable item (book, box, bottle, chest, coffer, coffin, door, drawer, and so forth). When casting fire trap, the character selects a point on the item as the spell’s center. When someone other than the character opens the item, a fiery explosion fills the area within a 5-foot radius around the spell’s center. The flames deal 1d4 points of fire damage +1 point per caster level (maximum +20). The item protected by the trap is not harmed by this explosion.

The fire trapped item cannot have a second closure or warding spell placed on it.

A knock spell does not affect a fire trap in any way, because knock only opens things and the fire trap in no way prevents one from opening the trapped item. An unsuccessful dispel magic spell does not detonate the spell.

Underwater, this ward deals half damage and creates a large cloud of steam.

As the caster, the character can use the trapped object without discharging it, as can any individual to whom the spell was specifically attuned when cast. "Attuning" usually involves a password that the character can share with friends.

Material: Worth 25 gp