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Rh rely upon, but I should value your opinion upon the mitral.'

I listened to his heart, as requested, but was unable to find anything amiss, save, indeed, that he was in an ecstasy of fear, for he shivered from head to foot.

'It appears to be normal,' I said. 'You have no cause for uneasiness.'

'You will excuse my anxiety, Miss Morstan,' he remarked airily. 'I am a great sufferer, and I have long had suspicions as to that valve. I am delighted to hear that they are unwarranted. Had your father, Miss Morstan, refrained from throwing a strain upon his heart, he might have been alive now.'

I could have struck the man across the face, so hot was I at this callous and off-hand reference to so delicate a matter. Miss Morstan sat down, and her face grew white to the lips.