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Cover pencils by Jack Kirby, inks by Joe Sinnott. First appearance of the Intergalactic Sentry #459 (a Kree machine) in The Sentry Sinister!, script by Stan Lee and Jack Kirby (co-plot), pencils by Jack Kirby, inks by Joe Sinnott; Explorers on a South Pacific island awaken the Kree Sentry 459; The FF come to the island for a vacation and become embroiled in a battle with the Sentry.