Detect Secret Doors

Divination
Tier: 1
Components: Verbal, Somatic
Casting Time: 1 major action
Range: 60 ft.
Effect: Cone-shaped emanation
Duration: Concentration, up to 1 minute/level
Saving Throw: None
You close your eyes as you mutter the ancient word. When you open them again, blue white flames now outline the old portrait of the duke.

This spell reveals hidden doors, compartments, and caches. All concealed passages, doors, or openings are detected by this spell; even sealed passages may be highlighted so long as some trace remains. Each round, you can turn to detect secret doors in a new area. The spell can penetrate barriers, but 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt blocks it. The amount of information revealed depends on how long you study a particular area.

1st Round
You know the presence or absence of passages.

2nd Round
Passages within range are outlined with a pale fire (actually a purely visual effect).