X-Men 6 (1966)

("Holocaust!", X-Men #26, listopad 1966)
("Re-enter: the Mimic!", X-Men #27, grudzień 1966)
("The Wail of the Banshee", X-Men #28, styczeń 1967)
("When Titans Clash!", X-Men #29, luty 1967)
("The Warlock Wakes!", X-Men #30, marzec 1967)