Detect Planar Energy

Choose a plane you have visited or have otherwise had contact with.  For the spell's duration, you can sense the direction to and intensity of energies from that plane, to a maximum range of one mile.  These energies tend to fade after a few hours or days, but it is possible to track creatures native to other planes by following the trails of planar energy they leave in their in their wake.

The spell can be foiled by strong sources of energy from the same or other planes.  For instances, Cauldron Hill in Flint is a powerful beacon of shadow energy, so you could be unable to pinpoint any sort of foreign energy there, not even fey or elemental energy.