X-Men Classic #4
"Terreur sur l'île de Muir" brings together legendary voices in X-Men lore, with Chris Claremont, John Byrne, and Geneviève Coulomb weaving a tense, atmospheric tale set on Muir Isle. As Jean grapples with the growing instability of her Phoenix powers and visions begin to blur reality, Moira uncovers a chilling truth—Proteus has escaped. Meanwhile, Beast, aware of the X-Men’s survival, reaches out for help, drawing the team back to the island in a race against an unseen threat. The story unfolds with the unmistakable art of John Byrne and the iconic cover by Dave Cockrum and Terry Austin, capturing the eerie, high-stakes mood of a classic era.
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Moira tests Jean's Phoenix powers; Jean begins having hallucinations thanks to Mastermind; Moira discovers that Proteus has escaped; Beast finds out the X-Men are alive and lets them know that Moira needs their help on Muir Isle.
Plot details indexed by the Grand Comics Database (CC BY-SA).