Four dead bank guards. A vault with no cash. A killer no one can find. What secrets lie beneath? When four guards are found dead in a bank basement in the early hours of Father's Day, the investigation leaves multiple families in a desperate quest for the truth. Dissatisfied with the conclusions drawn by police, Arielle Lucila is called upon to hunt down the killer. Having lost her own family to violence, the case is personal for Arielle. With the help of her partners, Felix and Selena, Arielle finds a lead. She peels back the layers and discovers the evidence points to an inside job. Proving it will take all of Arielle's investigative effort. Surviving the fallout comes at a price. With her team at her side, Arielle is on the trail of a murderer who's willing to stop at nothing to keep the truth from being exposed. If she can solve the case, it will be her biggest success to date. But the cost of cracking the Secrets in the Vault comes at a price. And if she's not careful, it could be her life. Join Arielle Lucila and her team on their latest heart-racing adventure. All books in the Arielle Lucila series can be enjoyed as standalone novels.