For the final two books in Jeffrey Archer’s bestselling Clifton Chronicles series, being published this year, publisher St. Martin's Press is mounting a global sales and marketing campaign.

While each of the five previous installments have been published once a year, the sixth book, Cometh the Hour, will be published worldwide on February 16, with the seventh and final book following on November 15, 2016. Cometh the Hour is getting a national promotion and advertising campaign from St. Martin's Press that will include television advertising on CBS Sunday Morning and BBC America, radio advertising on NPR, and a full page ad in the New York Times Book Review, in addition to an online campaign.

"The Clifton Chronicles series continues to grow with each book, and we're initially shipping more copies of Cometh the Hour than any other book in the series," St. Martin's Press said in a statement.

For the seventh and final book in the Clifton Chronicles series, which has not yet been given a title, a global promotional campaign is in place for countries including the U.S., U.K., India, Australia, and South Africa. During the lead up to the book's release, an international Brand Ambassador campaign will recruit Clifton Chronicle super-fans, a countdown-oriented interactive website "Join the Race" will encourage fans to binge read the entire series, and a cinematic trailer promoting the entire series will launch.

Set in the back alleys of Bristol, England and the streets of New York City during the 20th century, the series follows the Clifton and Barrington families. The fifth installment of Archer’s Clifton Chronicles series published in 2015, Mightier than the Sword, recently topped bestseller lists.