Double Jeopardy

A British agent mysteriously murdered on Lake Konstanz in Germany. Keith Martel, his replacement, must move swiftly. Aided by Claire Hofer.

The neo-Nazi DELTA organisation are conspiring ruthlessly. Someone else is conspiring equally savagely. Double Jeopardy.

A nightmare bloodbath in Zurich. A sudden attempt on Martel’s life. And close to midnight on 2nd June, the Summit Express moves east, taking the top four Western leaders to meet their Soviet counterpart in Vienna.

One of them is targeted. Which one is Martel’s nightmare problem.

And for the first time – Tweed appears.