Men in Black II: The Movie Novel — Michael Teitelbaum

The men in the crisp black suits and the really cool shades are back to keep the aliens from overrunning planet Earth. It's been five years since Agents Jay and Kay saved the world from a very big bug. Now a new alien menace is threatening to destroy the Earth - unless it's given the Light of Zartha. There's one problem: Only one person on Earth knows where the Light has been hidden - that person is Agent Kay.