"Hidden Assassins" is an exciting thriller from the author Robert Viger, which transports the reader to the atmospheric city of Madrid. The protagonist, Inspector Hector Salgado, once again finds himself at the center of tangled intrigues when a series of mysterious murders begins to haunt the city. A fast-paced puzzle, confusing characters, and local flavor help create a unique mood and leave the reader in suspense on every page. "Hidden Assassins" is a book that will definitely make you hold your breath from the first page to the last.