After a little torture, Boone transformed from the Loki persona, which he now saw as useless, into the devilish Halloween Jack and went about creating a plan to get back at the Synge siblings and take over Las Vegas in the meantime.
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Halloween Jack supposedly died in 2099 World of Tomorrow #2, but made an unexpected cameo in X-Force #92.
Halloween | Jack Kerouac | Jack Nicholson | Jack Nicklaus | Jack the Ripper | Jack London | Jack Kemp | Jack Kirby | Jack Lemmon | Jack Black | Jack Abramoff | Jack Dempsey | Jack Benny | Jack White | Wolfman Jack | Union Jack | Jack White (musician) | Jack and the Beanstalk | Jack Johnson | Jack Charlton | Jack Palance | Jack Daniel's | Jack | Jack Paar | Jack Layton | Jack Straw | Jack Vance | Jack Bruce | Jack Warden | Jack's Mannequin |
Halloween Jack (Jordan Boone, also known as Loki; later traveled to the present in X-Force #92)