Detect poison and disease

Detect poison and disease was a divination spell that detected diseases, poisons, or poisonous creatures.

Effect
Upon casting this spell, the caster could sense disease, poisons, and poisonous creatures within a 30 ft (9.1 m) radius and know their location and type (e.g., rabies, yellow mold, or snake). This ability lasted while the caster concentrated on the detection, or for 10 minutes, whichever was less.

This spell could successfully detect poison or disease through barriers, but could not penetrate 3 ft (91 cm) of wood or dirt, 1 ft (30 cm) of stone, 1 in (2.5 cm) of regular metals, or a thin layer of lead.

Detect poison and disease could also be cast as a ritual.

Components
In addition to verbal and somatic components, this spell required a yew leaf to cast.