"You will recall it. You will work; you will succeed. And once you succeed in penetrating the secret of the barrier between the twin possibilities, you will help us. Then we will be able to come through into this temporal freedom of this unreal existance—to help you!"

Ackerman groaned. "I am the man," he said quizzically, "who travels backwards in 'time' to write himself a set of plans on how to build a 'time machine' which he is now using to deliver the letter."

"Indeed."

"And so," Laurie said, smiling, "you reach down, grasp yourself by the shoelaces, and lift."

"Ridiculous.... But I will help!"

Calvin Blaine caught Ackerman's hand in a firm grasp. Laurie pressed his other arm against her in a gesture of real affection. Ackerman felt, within him, the beginnings of a glow of success—

And at that precise moment the ship lurched, throwing them all off balance.


5

Calvin Blaine cursed, strove to disentangle himself from Ackerman, who was trying to raise both his weight and that of Blaine from Laurie, who was pressed harshly across the heavy desk; its edge was cutting into her spine.