"Law & Order" creator Dick Wolf is working on a thriller, but it’s not for TV, reports Mike Fleming at Deadline.com.

Wolfe will write the thriller as a novel, the first of a two-book deal he has signed with Harper Collins imprint William Morrow, which is part of News Corp.

The thriller is in the mold of  "The Day of the Jackal" or "Three Days of the Condor," the story says. The untitled suspense thriller will be set in New York City and center around a terrorist attack planned for the July 4th holiday.

Fleming writes the book deal reminds him of another Wolf story: "It was a story about how Wolf had put together a five-hour miniseries that was going to meld the casts of the various Law & Order series, as they respond to a series of terror attacks in New York City and follow the clues. Seemed like a good story to break, but unfortunately it landed on the [Variety’s] front page on the morning of September 11, 2001. Needless to say, Wolf scrapped that miniseries but clearly he has thought long and hard about the subject matter," he writes.