“The convulsions were of a peculiar violence, Dr. Wilkins. I am sorry you were not here in time to witness them. They were quite⁠—tetanic in character.”

“Ah!” said Dr. Wilkins wisely.

“I should like to speak to you in private,” said Dr. Bauerstein. He turned to John. “You do not object?”

“Certainly not.”

We all trooped out into the corridor, leaving the two doctors alone, and I heard the key turned in the lock behind us.

We went slowly down the stairs. I was violently excited. I have a certain talent for deduction, and Dr. Bauerstein’s manner had started a flock of wild surmises in my mind. Mary Cavendish laid her hand upon my arm.