X-Men: The Hellfire Club — Marvel
Issue: #3
The origin of the Inner Circle continues! While young men from across Europe die in the trenches of WWI, others move among the shadows, grasping at power. Admidst the chaos, the madman known as Sinister and the original Union Jack make their moves to control the fate of the Shaw brothers. The choices they make will not only influence the outcome of the war, but of mankind itself!
First appearances: Jacob Shaw, Esau Shaw, Sir Waltham Pierce
Creators: Charlie Adlard, Mark Powers, Jon Babcock, Ben Raab, Kevin Somers
Characters: Mr. Sinister, Spitfire, Jacob Shaw, Esau Shaw, Irene Merryweather, Sir Waltham Pierce, Union Jack