From publisher blurb:

The buzz of musket balls still rings in your ears, a constant reminder that the Cardinal's Guard is never far behind. But it is the heat that will kill you. The trip from Paris to London is never easy, but when it must be done in threee sleepless days, with the Cardinal's Guard in pursuit, it's impossible. When the future of Parallel M-1 is at stake, however, the Time Corps demands the impossible. Cardinal Richelieu is allied with a Demorean even more clever than he and they will do anything to stop you. Adventure with the Three Musketeers to save the Queen's honor and the day!