It's the talk of the town in the London coffee houses—how everyone's buying shares in the Company of Gentleman Adventurers Trading into the Moon! In the London docks a ship is being built, designed by Clockwork genius John Wilkins, a ship that can fly. It will be the first vessel ever to leave the shores of Earth and venture to another world—whatever it brings back, the profits are sure to be enormous.

When the Enterprise flaps its mighty wings and ascends into the empyrean, it seems like a perfect example of the superiority of Parliamentarian Clockwork over their Royalist rivals' Alchemy. Only the Adventurers, their mission aboard the moon-ship a secret at the highest levels, know that they will not be the first to visit the Moon—their nemesis is ahead of them, and up to no good as usual.