The Hidden Assassins brings back Spanish police Inspector Jefe Javier Falcon, first introduced in
The Blind Man of Seville. Falcon is called upon to investigate the murder of an unknown corpse in Seville that had been mutilated and disfigured to prevent identification. This is soon followed by an explosion that levels an apartment building. When it is discovered that the building had a mosque in the basement and a van is found with a Koran inside, Islamist terrorists are suspected to be responsible for the blast. While others try to determine whether the explosives were intentionally set off or not, Falcon continues his murder investigation. He eventually comes to suspect that things are not what they seem, and while zealots are probably responsible for the explosion, they may be Catholic instead of Islamist. He also realizes that means the Islamists aren't innocent either. Robert Wilson's novel has received positive reviews with the USA Today saying, "
The Hidden Assassins is a complicated, disturbing novel for complicated, disturbing times."
