Bering Sea — James Strauss

He's back with twice the action! Arch Patton, aging CIA operative, finds himself assigned to a secret mission, ostensibly to secure the freedom of the son of a portly United States Senator, the chair of the Senate Appropriations Committee.

The action takes place in the Bering Sea and Russia, opening on Little Diomede Island, 2.4 miles from the Russian owned Big Diomede Island.

Arch Patton had just returned from a nefarious assignment in Africa and thrust again into intrigue and possible danger or a fiasco. He is joined by a diverse group of expedition cruise ship denizens aboard the M/S World Discoverer

This is how the assigning agent, Joshua Boatwright, at Langley surmised the Arch as the right pick:
“That ‘best man' (Arch Patton) had just come out of West Africa under the bloodiest of circumstances, somehow having improbably accomplished his mission. The skewed manner in which his mission had been conducted would no doubt have the Agency looking like a stone cold, heartless bureaucracy.
He'd sent a low-life field agent off to save the drug-dealing nephew of a corrupt scumbag of a senator. This time the mission had not even the remotest possibility of success