As the world's only mutant detective agency, X-Factor Investigations welcomes all cases. No mystery is too weird for Jamie Madrox, a.k.a Multiple Man, and his crack team of strangely gifted compatriots. But while fighting to save the planet and the remnants of the decimated mutant race, the members often neglect the problems in their personal lives.The series has been collected in the following paperbacks:X-Factor: The Longest Night - (#1-6)X-Factor: Life And Death Matters - (#7-12)X-Factor: Many Lives Of Madrox - (#13-17)X-Factor: Heart Of Ice - (#18-24)Messiah Complex - (#25-27)X-Factor: The Only Game In Town - (#28-32)X-Factor: Secret Invasion - (#33-38)X-Factor: Time And A Half - (#39-45)X-Factor: Overtime - (#46-50)X-Factor: Invisible Woman Has Vanished - (#200-203)X-Factor: Second Coming - (#204-206)X-Factor: Happenings In Vegas - (#207-212)X-Factor: Scar Tissue - (#213-219)X-Factor: Hard Labor - (#220-224)Super Unnatural (#224.1, #225-228)They Keep Killing Madrox (#229-232)