Detect Structural Flaw

This spell allows the caster to detect hidden structural flaws in items such as ceilings, floors, armor, weapons, ships, piers, buildings, etc. The spell is used primarily to assess the structural soundness of seagoing vessels. A shipmage who regularly uses this spell (and acts upon the information gathered) grants a +1 bonus to the ship’s saving throws vs. any kind of damage. Storms, weapons, impact, swamping, etc.

The caster may move slowly (one-quarter normal speed) while maintaining the spell, but may not cast other spells. The caster may detect flaws up to 1' deep in wood and stone, and up to 1" deep in metal. Scanning an "item" such as a shield, helmet, sword, or specific support beam, etc., requires 1 round. Scanning an "area" such as a deck or ceiling requires 1 turn per 10' x 10' area inspected.

The material component (consumed) is a 1" diameter unflawed steel disk with ridges (easily made with a file) on the outer rim, worth 1 sp.