Men in Black II: The Official Novelization — Esther Friesner

THE MEN IN BLACK ARE BACK --
TO SAVE THE PLANET FROM CERTAIN DOOM.

When an unauthorized spacecraft lands smack-dab in the middle of New York's Central Park, and is found abandoned with enough antimatter weapons to turn the island of Manhattan into a new Atlantis, it's a job for Men in Black -- the top-secret organization that monitors the activities of all extraterrestrials living on Earth. There's a new ET in town, as beautiful as she is deadly.

Immediately, Agent J is assigned to the case, but in order to succeed in his mission, he must locate his old partner, Agent K, whose memory was wiped clean when he “retired.” For it's K, now a postal worker in Massachusetts, who holds the key: In his mind rests a powerful secret -- one that could save the earth, or destroy everything, if it falls into the wrong tentacles. . . .