Uncanny X-Men Vol.1 #239


Strange occurrences are happening all over the city of Manhattan. Mr. Sinister plots and schemes from the shadows. The X-Men are betrayed by one of their own. And, the Marvel Universe is about to engulfed by an all encompassing evil from which no one will escape. Welcome to the Inferno!

Printed: Dec 1988
Writers: Chris Clairemont
Art: Marc Silvestri and Dan Green
Cover: Marc Silvestri and Dan Green

- 1st cover and 2nd appearance of Mr. Sinister
- 1st cover appearance and mention of Madelyne Pryor as the Goblin Queen
- Madelyne Pryor in Goblin Queen costume first occurs in Uncanny X-Men #234