In 'The Ephemeris Protocol', Elizabeth, Paul and Zac are in Paris for a spot of counterespionage (not sponge diving!); it's also Elizabeth's birthday. What should have been a simple case of following the mole turns into a fight for survival. Elizabeth thwarts a bank robbery and Zac is up to his neck in wolves and bears, baying for his blood.

'The Ephemeris Protocol is the 5th Zac Tremble Case File in the series Zac Tremble Investigates; the case files of the gay, Soho-based PI Zachary Tremble.

'The Ephemeris Protocol' follows: 'Chrysalis' (1st), 'Metamorphosis' (2nd), 'Transmutation' (3rd) and 'The Red Kimono' (4th).

Thank you!

Chambers Mars