The Death Knight Chronicles
Elazar cracked the Veil between life and death. Now death is no certainty of rest. Given violent and sorrow-filled death, grave-dirt with a high proportion of Necrotic properties, a lack of proper burial or other unlikely circumstances a corpse may rise. Within Vesper, Revenant’s are reguarded with sorrow and fear. Many manage to pass for human among strangers with no knowledge of their death.