It's a golden time after The Great War: new technology like airplanes are taking men further and faster than ever before.  The people of Europe are partying like never before, trying to turn away from the horrors when the army of the undead known as The Horde invaded Europe.

Everything from Captain Avery of the Royal Air Corps to Zeppelins, from the Amelia Earhart figure of Lady Grace Hartmore to the Orient-Express (continuing on to Baghdad from Istanbul via The Taurus Express as it was then known), from axes to zombies, Arab Kings to Zoroastrian priests, from annoying children to French-Algerian spies... it's all in here (there's even flamethrowers and cricket bats).

Imagine one wild mash-up between Robert Redford in 'The Great Gatsby', Terry-Thomas in 'Those Magnificent Men in Their Flying Machines', Harrison Ford in 'Indiana Jones and The Raiders of The Lost Ark', David Suchet in any number of Hercule Poirot mysteries and even the classic BBC 1 series, Beau Geste and you'll be getting something close to the steam-punk madness of The Hidden Kings.