Invisibility Alarm
Invisibility Alarm
AbjurationLevel: Alchemist* 1, Artificer* 1, Bard* 1, Hunter* 1, Inquisitor* 1, Ranger* 1, Sorcerer*/Wizard * 1
Components: V, S, F/DF (a tiny bell and a piece of very fine silver wire)
Casting Time: 1 Standard Action
Range: close (25 ft. + 5 ft./2 levels)
Area: 20-ft.-radius emanation, centered on a point in space
Duration: 10 minutes/level
Saving Throw: None
Spell Resistance: no
Invisibility Alarm creates a subtle ward on an area you select. Once the spell effect is in place, it thereafter sounds a mental or audible alarm each time an Invisible creature of Tiny or larger size enters or leaves the warded area or touches it.
A creature that speaks the password (determined by you at the time of casting) does not set off the alarm.
You decide at the time of casting whether the alarm will be mental or audible in nature.
Mental Alarm: A mental alarm alerts you (and only you) so long as you remain within 1 mile of the warded area. You note a single mental "ping" that awakens you from normal sleep but does not otherwise disturb concentration. A silence spell has no effect on a mental alarm. The spell has a different mental alarm depending on whether the Invisible creature is entering or leaving the area. This spell does not aid you in sensing or pinpointing the location of an Invisible creature within the spell's area.
Audible Alarm: An audible alarm produces the sound of a hand bell, and anyone within 60 feet of the warded area can hear it clearly. Reduce the distance by 10 feet for each interposing closed door and by 20 feet for each substantial interposing wall.
In quiet conditions, the ringing can be heard faintly as far as 180 feet away. The sound lasts for 1 round. Creatures within a silence spell cannot hear the ringing. Ethereal or astral creatures do not trigger the alarm.
Invisibility alarm can be made permanent with a Permanency spell by a caster of 9th level or higher at a cost of 2,500 gp.