The Waltham Public Library will host author David Baldacci to discuss his latest book, “Mercy.” The Tewksbury Public Library, Wellesley Books and several other Massachusetts libraries collaborated in planning the event, which will be held on Zoom on Dec. 9.

Baldacci’s new novel, according to the Waltham town community events page, tells the story of an FBI agent as he searches for his long-lost sister, who was abducted at a young age. 

Members of the public can register to attend the free event, which will take place over the course of an hour on Dec. 9. Those who register can expect to learn more about Baldacci’s novels as well as his nonprofit organization, the Wish You Well Foundation, which he leads alongside his wife, Michelle Baldacci. According to its website, the Wish You Well Foundation “works to support adult and family literacy in the United States by fostering and promoting the development and expansion of new and existing literacy and educational programs. The Foundation makes donations to programs and projects that aid in this stated mission.”

According to his website, Baldacci’s 40 published novels, most of which contain plots of mystery and suspense, have been published in 45 different languages.