Harrowcall Veil

Harrowcall Veils is a magical item that hides the wearer when they stand still in shaded areas of the Feywild. Morrigan created a set of three "long ago for a particular friend for a particular job" but the recipient was killed before the veils could be used. She gifted them to Bells Hells as they left Ligament Manor to sabotage a Malleus Key.

Description
When a Harrowcall Veil is pulled over someone, they become unseen while they are standing still in shaded areas of the Feywild. If the wearer moves, the enchantment "stretches" and causes the wearer to be seen again. Morrigan said that she felt the Veils would be useful for Bells Hells in their "coming journeys" but it is not clear if their enchantment works outside the Feywild.