"That's a fine way to start the trip. You have the old star maps to get back however, have you not?" asked Wade.
"Yes, the maps we made on our first trip out this way are in the cabinet. Look 'em up, will you, and see how far we have to go before we reach the cosmic fields?"
Arcot was busy with his instruments, making a more accurate determination of their distance from the "edge" of the galaxy. He adopted the figure of twelve thousand five hundred light years as the probable best result. Wade was back in a moment with the information that the fields lay about sixteen thousand light years out. Arcot went on, at a rate that would reach the fields in two hours.
Several hours more were spent in measurements, till at last Arcot announced himself satisfied.
"Good enough—back we go." Again in the control room, he threw on the drive, and shot through the twenty-seven thousand light years of cosmic ray fields, and then more leisurely returned to the galaxy. The star maps were strangely off. They could follow them, but only with difficulty as the general configuration of the constellations that were their guides were visibly altered to the naked eye.
"Morey," said Arcot softly, looking at the constellation at which they were then aiming, and at the map before him, "there is something very, very rotten. The Universe either 'ain't what it used to be' or we have traveled in more than space."
"I know it, and I agree with you. Obviously, from the degree of alteration off the constellations, we are off by about 100,000 years. Question: how come? Question: what are we going to do about it?"
"Answer one: remembering what we observed in re Sirius, I suspect that the interference of that Thessian ship, with its time-field opposing our space-field did things to our time-frame. We were probably thrown off then.
"As to the second question, we have to determine number one first. Then we can plan our actions."
With Wade's help, and by coming to rest near several of the stars, then observing their actual motions, they were able to determine their time-status. The estimate they made finally was of the order of eighty thousand years in the past! The Thessian ship had thrown them that much out of their time.