Octagon

A deadly weapon A human sacrifice A prophecy of mass murder... ... One woman can unravel the conspiracy, And one man must keep her alive.

Disgraced former MI6 officer Stella McRae runs her own private intelligence agency in London, determined to prove herself against the competition of the 'old boy' network. When Stella's former MI6 mentor dies after giving her a warning about impending mass murder by a mysterious network, Stella sets out to investigate, despite the risks.

Called on to protect her, Tommy Kane is an ex-Special Forces soldier now living on the private security circuit to support his family. Struggling with deep-rooted demons, he refuses to seek help and keeps his vulnerability hidden.

With their intimate shared history and new mutual identity as outsiders from the government system, the two must work together fast, their mission taking them to Sweden, Denmark, Munich and Bosnia.

But the roots of the operation go deeper than either of them could have anticipated, and with this many people connected globally - who can they trust to prevent one of the deadliest crimes in UK history?