Book of Fiends, Volume One: Legions of Hell

Shannon Appelcline noted that "In 2001 Green Ronin expanded beyond their early Freeport adventures and went into the business that the more successful d20 publishers were already in: publishing sourcebooks and other gaming material. This began with the well-received monster manual, Legions of Hell: Book of Fiends, Volume One (2001)."^[3]: 371

• Pyramid^[4]
• Backstab [fr]^[5]
• Asgard #1 (July, 2001)^[6]