You create a glowing lock made of magic on an object, which keeps it closed.
(ex: A door, book, chest, mimic in the shape of a chest, or visor).
Roll a test of Spellcraft to set the DC to pick or break the magic lock.

You may end this spell as an action. If a creature expects resistance from the lock, but finds none, it may trip.

You may unlock or lock the lock as an action.
You may give the lock a password which unlocks it whenever it is spoken.

You may also use this magical lock to do other things a padlock can, such as connect two lengths of chain, which could prove useful if a hellhound breaks its chains.

Intensify: Each boost from Intensify increases the level of this spell, and therefore the DC to Dispel it.

Suggested Backfire: The object you are trying to lock is teleported to a place of the Headmaster’s choosing, up to a mile away.