Comics Chronology: More untold tales featuring Hellboy's earliest missions with the BPRD - from the 1950s through to the '90s, before the events of 'Seed of Destruction'
Hellboy Universe Reading Order 1339BC-1948: The Secret Histories
Comics Chronology: Sir Edward Grey counters weird happenings in London, Lobster Johnson fights crime in New York and a certain baby 'Boy emerges from Hell!