Paredes bowed.

"I regret that the amusement Mr. Graham causes me sometimes finds expression. He is so earnest, so materialistic in his relation to the world. That is why he will see nothing psychic in the situation."

Paredes's easy contempt was like a tonic for Katherine. Her fear seemed to drop from her. She turned purposefully to Bobby, ignoring the Panamanian.

"I shall watch with Hartley," she said.

He was ashamed that jealousy should creep into such a moment, but her resolve recalled his amorous discontent. The prospect of Graham and her, watching alone, drawn to each other by their fright and uncertainty, by their surroundings, by the hour, became unbearable. It placed him, to an extent, on Paredes's side. It urged him, when Paredes had gone on downstairs, to spring almost eagerly to his defence.

"As Hartley says," Katherine began, "he makes you think of a snake. He must see we dislike and resent him."

"You and Hartley, perhaps," Bobby said. "Carlos says he is here to help me. I've no reason to disbelieve him."

A little colour came into Katherine's face. She half stretched out her hand as if in an appeal. But the colour faded and her hand dropped.

"We are wasting time," she said. "You had better go."

"I am sorry we disagree about Carlos," he commenced.