X-Factor - Volume 20: Hell on Earth War — Peter David

A fukk year of X-FACTOR stories culminates here, as the Hell on Earth War begins! The various Lords of Hell battle for dominance in a vicious, mystical war triggered by the seven billionth soul born on Earth, and only X-Factor can prevent the entire world from going up in flames! But as X-Factor struggles to stop the Lords of Hell from tearing the Earth apart, familiar faces will return - the first of whom is Strong Guy! And he has a bone to pick with his former teammates. This is the beginning of the end for X-Factor as you know it...

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