Six issue mini-series following up on events from Hellboy: Darkness Calls wherein the titular character encountered Koschei the Deathless. Meeting in hell long after both have died, Koshchei recounts his life story to Hellboy.

Collected in Koshchei the Deathless.

See Also: "How Koshchei Became Deathless", a short story that previous ran as a backup feature in Hellboy: The Wild Hunt and serves as the basis for the first issue of this mini-series.