Rare art of the day: First sketch of Bilial, father of Etrigan the Demon, by Michael Zulli (done in preparation of the unpublished Swamp Thing #88), 1989.

Rare art of the day: First sketch of Bilial, father of Etrigan the Demon, by Michael Zulli (done in preparation of the unpublished Swamp Thing #88), 1989.