Reese Witherspoon vows to ‘thrill’ fans in first book with author Harlan Coben

Reese Witherspoon is writing a book (Danny Moloshok/Invision for the Television Academy/AP)

Oscar-winning actress Reese Witherspoon is teaming up with a best-selling author on her first work of adult fiction.

The Legally Blonde and Big Little Lies star is working with thriller writer and Netflix producer-creator Harlan Coben on a suspense novel, Grand Central Publishing said.