Broken Oaths - Patricia Marques - Bog

"During a remote meeting, a Portuguese official watches from Lisbon as his colleague, Emanuel Francisco, a diplomat based in London's Portuguese embassy, dies of what looks to be a heart attack. When no one comes into the room to Francisco's aid, he tries frantically to contact the consulate to get immediate help. No one picks up. When local police finally arrive hours later, they walk into a disturbingly silent and horrific scene. Everyone inside the building is dead. Inspector Isabel Reis, a gifted Inspector with Portugal's PolIcia Judiciaria, has developed a reputation for closing sensitive cases involving powerful people. When the gravity of what has happened in London is revealed, she's called up to assist the Met's CID in the investigation. Two things quickly become very clear: this was a mass killing, and only one person escaped. The person the embassy was secretly protecting within its walls. Now Isabel must quiet her turbulent mind and come face to face with a killer more ruthless than she has ever seen before... the answers lie with the sole survivor"--