Poplach
Poplach is a level one abjuration spell with a casting time of one minute, a range of thirty feet, and a duration of eight hours. This spell has a material requirement of a bell or chime. Poplach is used to guard against intrusion. The caster chooses a door, window, or other way of entry and when the barrier is breached the bell or chime used as the material will sound. While the spell must be cast within thirty feet of the point of entry, the caster may then move up to a mile away and still be alerted. The spell does not consume the casting material and it may be reused.
Poplach has its origins in Eastern Europe where it was first used to guard religious relics. Today, it has similar uses at financial institutions but also more pedestrian applications such as for parents wanting to keep tabs on a wandering child.