He suddenly whirled on Rowan. "There is no question of God changing his mind between now and then since there is nothing that could possibly happen between now and then that would surprise Him, give Him a reason for changing His mind, because if He did He would be violating His own definition which includes absolute knowledge of all events past and future." * * * * * Rowan, immovable, stared back at him. "But we need _two_ time machines," Pendelton resumed. "I know, these things are expensive but if you're really interested you'll ram it past the trustees." "Stop!" Freylinghuysen said. "No, go ahead. _Damn!_" "I won't go through this again," Rowan shouted, rising. "All he's going to do is play more tricks with words!" "Won't hurt to _listen_ to him," Freylinghuysen replied. "Now we send one time machine back to 1868 by means of the other. Then one of us travels to 2068 from 1868 while another goes to that allegedly _same_ year 2068 from the present, from 1968. See what I'm getting at?" Shaheen slowly nodded his head and then closed one eye. "If there's free will," Blackburn mumbled, "they won't meet." "Let's look for exclusion principles," Freylinghuysen commented, putting the balls of his fingers together and staring at the ceiling. Rowan, ignored, watched them for a few seconds and sat down again. After a while he began to wonder how many experiments it would take before Pendelton found the proof he was looking for. THE END