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Abjuration [[[SRD:Earth Effect|Earth]]]
Level: Sorcerer/Wizard 2
Components: V, S, M
Casting time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Target: One 1-foot length of tunnel with a diameter of up to 10 feet
Duration: Permanent
Saving Throw: None
Spell Resistance: No


You scribe a spiral in the air with the diamond-tipped bit of charcoal, chanting the words of the spell. Immediately the sides of the cavern begin to constrict, sealing the passage behind you.

You cause a 1-foot length of subterranean tunnel to constrict, "locking" it against others who might wish to traverse its length. This spell only affects naturally occurring tunnels or worked tunnels that are surrounded on all sides by unworked, natural, subterranean earth. You can affect any tunnel whose diameter does not exceed 10 feet. A square-sided or rough tunnel can also be affected, as long as its diameter at the point where the spell is cast does not exceed 10 feet.

The constriction takes 1 round to complete. Any Large or smaller creature that partially blocks the constriction point is pushed, unharmed, to one side or the other. (A creature can decide which way to move; an object moves randomly.) A large or larger object or creature that blocks the constriction point blocks the spell until moved.

You can freely pass through tunnels that you have secured with this spell. (The constriction opens and closes at your command, taking 1 round for either process.) A tunnel secured by earth lock can by bypassed by others in several ways. A DC 20 Escape Artist check allows the creature making the check to squeeze through the constriction but leaves it intact. A DC 25 Strength check breaks the constriction, ending the spell. A successful dispel magic or knock spell ends the constriction — the former by ending the spell and the latter by suppressing it for 10 minutes. If a creature burrows through the earth lock, the spell ends. The constricted tunnel can also be dug out normally.

Identifying a tunnel sealed with earth lock (as opposed to a tunnel that just ends) requires a DC 20 Search check.

Material Component: A diamond chip worth at least 50 gp, embedded in a piece of charcoal.





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