(ritual); concentration, 5 minutes/mana

As an action, you can sense the presence and location of poisons and poisonous creatures within 5 meters of you. You also identify the kind of poison or poisonous creature in each case. 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