Fans of The Time Traveler's Wife, rejoice! Six years after Audrey Niffenegger's gem became a surprise best-seller, she has signed a multimillion-dollar deal for a new book to be published this fall.

Scribner bought the rights to publish Her Fearful Symmetry in the United States, according to The New York Times. The book is a supernatural story about twins who inherit an apartment near a London cemetery and become embroiled in the lives of the building’s other residents and the ghost of their aunt.

Niffenegger is a visual artist and a faculty member at Columbia College Chicago, Center for Book and Paper Arts. Her first novel, published by a small house, sold more than a million copies, the Times said. Her new book is set to go on sale at the end of September; meanwhile the film adaptation of The Time Traveler’s Wife, is scheduled for a February release.