The Wraith Contract is a monster contract in Act V of The Witcher, set in Old Vizima and the Swamp Cemetery. Kalkstein wants four handfuls of death dust, the remains of slain wraiths, and pays 300 orens for them. He never quite explains what he needs it for, which is very on brand for Kalkstein.
Wraiths haunt Raven’s Crypt and the area around the Swamp Cemetery chapel. Geralt needs a wraith entry in his Bestiary before the dust can be gathered, but any death dust left over from the noonwraiths of Act IV counts too, so hoarders may finish this one instantly.
