"The fact is that your government has known about us for six months. Our exact whereabouts has been a well guarded secret ... but they were informed of our presence here on Earth."

"Informed! But who could tell them ..."

Chase broke in impatiently. "We are wasting time! We must get those recordings!"

The interruption was dismissed with a wave of Thompson's hand.

"Your government was informed by George Fisher."

"George Fisher!" Harry gulped.

"You see, Mr. Fisher ... that wasn't really his name, you understand ... was one of us ... a member of our observation team. After we arrived here ... well, you might say he defected, gave your government the benefit of his somewhat limited knowledge."

Harry whistled. "And because of him your mission is no longer observational."

"That remains to be seen."

Harry leaned forward on the sofa. "You have any ideas, Mr. Thompson, about why he defected? I'm curious to know why a man is unhappy enough with his own lot to run away and put himself in the hands of a civilization that is in every way alien to him."