Detect Blood

For the duration, you sense the presence of blood within 30 feet of you. You also see a glowing blue outline of all blood spilled in the area, provided the blood was removed less than 24 hours earlier. Certain cleaning spells and cleaning products may also show a similar glowing blue outline.

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.