X-Men and Power Pack #1
In "Costumes On!", Jack and his siblings don’t just dress up for Halloween—they stumble into a real-life clash between Wolverine and Sabretooth when Katie runs off in tears, sending the Power Pack on a frantic rescue mission. Written by Marc Sumerak and brought to life with vibrant, dynamic art by Chifuyu Sasaki and Gurihiru, this 2005 Marvel crossover blends the energy of teenage heroics with the raw intensity of mutant battles, all under a cover by Chifuyu Sasaki.
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Jack dresses up as Wolverine for a Halloween party and he and his siblings get tangled up in a fight between the real Wolverine and Sabretooth when Katie runs off with her feelings hurt and the Pack goes after her.
Plot details indexed by the Grand Comics Database (CC BY-SA).