Detect Evil and Good

Detect for the duration, aberration, celestial,
elemental, fey, fiend, or undead within 30 feet
of you, as well as where the creature is located. Similarly, you know if there is a place or object
within 30 feet of you that has been magically consecrated or desecrated.
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.