Robert listened to the whole luckless story with astonishment and dismay. This particular possibility of mischief had gone out of his mind for some time. He had been busy in his East End work. Catherine had been silent. Over how many matters they would once have discussed with open heart was she silent now?

'I ought to have been warned,' he said with quick decision, 'if you knew this was going on. I am the only man among you, and I understand Langham better than the rest of you. I might have looked after the poor child a little.'

Catherine accepted the reproach mutely as one little smart the more. However, what had she known? She had seen nothing unusual of late, nothing to make her think a crisis was approaching. Nay, she had flattered herself that Mr. Flaxman, whom she liked, was gaining ground.

Meanwhile Robert stood pondering anxiously what could be done. Could anything be done?

'I must go and see him,' he said presently. 'Yes, dearest, I must. Impossible the thing should be left so! I am his old friend,—almost her guardian. You say she is in great trouble—why, it may shadow her whole life! No—he must explain things to us—he is bound to—he shall. It may be something comparatively trivial in the way after all—money or prospects or something of the sort. You have not seen the letter, you say? It is the last marriage in the world one could have desired for her—but if she loves him, Catherine, if she loves him——'

He turned to her—appealing, remonstrating. Catherine stood pale and rigid. Incredible that he should think it right to intermeddle—to take the smallest step towards reversing so plain a declaration of God's will! She could not sympathise—she would not consent. Robert watched her in painful indecision. He knew that she thought him indifferent to her true reason for finding some comfort even in her sister's trouble—that he seemed to her mindful only of the passing human misery, indifferent to the eternal risk.

They stood sadly looking at one another. Then he snatched up his hat.

'I must go,' he said in a low voice; 'it is right.'

And he went—stepping, however, with the best intentions in the world, into a blunder.

Catherine sat painfully struggling with herself after he had left her. Then some one came into the room—some one with pale looks and flashing eyes. It was Agnes.