They considered returning to the 21st century for rest and going back to the future after that. Or perhaps even just wishing to be rested and to travel to the start of the next morning.
As they were walking through the spaceport, though, they noticed the same guard who had pointed a futuristic gun at Jon and Karyn. He didn't seem to care about their presence since they weren't in a restricted area this time.
"Maybe we should find a hotel," said Jon. "I wonder what future hotels are like, and we have plenty of money from the stone."
"Hmm," said Karyn. "Good idea. We can---"
Their conversation was interrupted by a shout from the guard and the sound of several gun blasts, probably from him. "Delphites!" he yelled into his wrist-communicator. "Lots of them! Help!"
They turned back and went around the corner, to see the guard and....