Detect Secret Doors

For the duration, you sense the presence of hidden switches and doors within 30 feet of you, such as those activated by pulling a specific book from a shelf or pulling on a torch. Secret doors will be illuminated as if from behind, outlining them to you for the duration of the spell. Switches will glow faintly in the same color and brightness as whatever door they activate. If the switch or door is hidden behind something, you can sense its presence and its general direction and distance from you.

The spell can penetrate most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.