Zero Days, the “five star” thriller (Janice Hallett) by New York Times-bestselling author Ruth Ware, is available for only 99p this November. Grab your e-book here now on a Kindle Monthly Deal before the end of the month.

Hired by companies to break into buildings and hack security systems, Jack and her husband, Gabe, are the best penetration specialists in the business. But after a routine assignment goes horribly wrong, Jack arrives home to find her husband dead. To add to her horror, the police are closing in on their suspect—her.

Suddenly on the run and quickly running out of options, Jack must decide who she can trust as she circles closer to the real killer in this unputdownable and heart-pounding mystery from an author whose “propulsive prose keeps readers on the hook and refuses to let anyone off until all has been revealed” (Shelf Awareness).

Already read it? Ruth’s latest high-tension thriller, One Perfect Couple, is out now. Grab your US copy here and your UK copy here or, better, via your local bookshop or Bookshop.org.

Follow Ruth on Instagram @ruthwarewriter and Twitter @RuthWareWriter.