D.I. Telbat continues The COIL Series Christian Suspense in Dark Vessel, Book Four, when COIL founder, ex-CIA Agent Corban Dowler, is forced underground after he is the target of a car bomb. His covert investigation begins on the streets of Manhattan when his Muhammad ibn Affal alias is compromised. But the knot of darkness he hopes to untangle is more sinister than he imagined.

Italian spook, Luigi Putelli, rises to the COIL challenge, and attempts to stand vigil in Corban's absence. Luigi scours the world to help those in need--even when his past threatens to...