 What shocked Myles the most when he woke up on the beach?
A thunderstorm had been brewing all that evening, and just as Myles had placed himself between the coordinate axes of his machine and had gathered up the strings which ran from his control levers to within the apparatus, there had come a blinding flash. But when he had finally and fully recovered, he found himself lying on a sandy beach beside a calm and placid lake beneath a silver sky. Could it be that all his adventures in Cupia had been naught but a dream; a recurring dream, in fact? Myles would have to wait until they reached their landing place; for doubtless they would soon hover down in some city or town, though just which one he could not guess, as the country below was wholly unfamiliar.
 Enemies arrived that he believed to be dead.
 Enemies arrived that he believed to be dead.  He was on Venus instead of Mars.  He realized Prince Yuri was alive.  He knew he'd been dreaming.