[sufue]

Both (per SYKM) thiller-ish looking Thomas Kell titles by Charles Cumming have dropped to $2.99 at Kindle US.

A Foreign Country, #1
link: https://www.amazon.com/dp/B00779RJ9M

Spoiler:

From the internationally acclaimed, New York Times bestselling author of The Trinity Six, comes a compelling tale of deceit and betrayal, conspiracy and redemption

On the vacation of a lifetime in Egypt, an elderly French couple are brutally murdered. Days later, a meticulously-planned kidnapping takes place on the streets of Paris. Amelia Levene, the first female Chief of MI6, has disappeared without a trace, six weeks before she is due to take over as the most influential spy in Europe. It is the gravest crisis MI6 has faced in more than a decade. Desperate not only to find her, but to keep her disappearance a secret, Britain's top intelligence agents turn to one of their own: disgraced MI6 officer Thomas Kell. Tossed out of the Service only months before, Kell is given one final chance to redeem himself - find Amelia Levene at any cost. The trail leads Kell to France and Tunisia, where he uncovers a shocking secret and a conspiracy that could have unimaginable repercussions for Britain and its allies. Only Kell stands in the way of personal and political catastrophe.

A Colder War, #2
link: https://www.amazon.com/dp/B00HY019SG

Spoiler:

Internationally acclaimed as "a premier writer of espionage thrillers" (USA Today), Charles Cumming is "among the most skillful spy novelists" (Washington Post) and "a worthy successor to the masters…like John le Carré and Len Deighton" (Chicago Sun-Times). Now, with A COLDER WAR, Cumming returns with MI6 agent Tom Kell (A Foreign Country), in a tour de force that will dazzle readers and critics alike.

A top-ranking Iranian military official is blown up while trying to defect to the West. An investigative journalist is arrested and imprisoned for writing an article critical of the Turkish government. An Iranian nuclear scientist is assassinated on the streets of Tehran. These three incidents, seemingly unrelated, have one crucial link. Each of the three had been recently recruited by Western intelligence, before being removed or killed.

Then Paul Wallinger, MI6's most senior agent in Turkey, dies in a puzzling plane crash. Fearing the worst, MI6 bypasses the usual protocol and brings disgraced agent Tom Kell in from the cold to investigate. Kell soon discovers what Wallinger had already begun to suspect—that there's a mole somewhere in the Western intelligence, a traitor who has been systematically sabotaging scores of joint intelligence operations in the Middle East.