Sicklight Wisp

The greenish pall that sicklight wisps cast over their surroundings causes creatures within it to sicken and die. Whereas the will-o'-wisps typically encountered on the surface feed on fear, sicklight wisps feast on the illness they spread, taking joy in robbing creatures of their vigor and health.

Though most commonly associated with the pit of Mobhad Leigh, sicklight wisps are occasionally encountered elsewhere in the Darklands. Wicked creatures sometimes employ the wisps to foil attempts at scrying on their subterranean lairs, as anyone who uses magic to spy upon a sicklight wisp risks having their mind irrevocably shattered.

Curse of the Infirm

In the Darklands, sicklight wisps are feared by both healers and the sick, because they're drawn to hospitals and other places of healing. Able to travel invisibly and evade scrying, the wisps slip into sickrooms, becoming briefly visible as they drain the remaining life from ailing victims. To protect against the wisps, some long-standing institutions of healing have taken to planting radlight caps around their facilities, since these otherwise dangerous mushrooms turn black in the presence of even an invisible sicklight wisp.