concentration, 5 minutes/mana
As an action, you know if there is an aberration, celestial, elemental, fey, fiend, or undead within 5 meters of you, as well as where the creature is located. Similarly, you know if there is a place or object within 5 meters of you that has been magically consecrated or desecrated.
The spell can penetrate most barriers, but it is blocked by 30 centimeters of stone, 2 centimeters of common metal, a thin sheet of lead, or 1 meter of wood or dirt.