But the growing noise in my head obscured his words, although I could see that he was talking, could see too when he stopped talking and his eyebrows came together in an expression some part of me recognised as concern. Then his mouth moved again and his hand came out but I couldn't hear him, couldn't hear anything but the roaring of a great waterfall, and for a while it was hard to see anything as well.

With no helpful nurse around to press her cool hand against the back of my neck to force my head down, it was a wonder I didn't end up on the floor. I came back to myself to find that my body had assumed the head-down position under its own power, my forehead resting on the heels of my hands, lungs pulling in, slow and deep. It could only have been seconds that my awareness faltered, because two suited legs had scarcely had time to clear the desk on their way to the door.

“I'm all right,” I croaked.

He paused, out of sight, and I cleared my throat and repeated the assertion, with sufficient strength this time that he could understand me.

“Can I get you something?” he asked, sounding nervous. “A glass of water?”

“That would be good, thank you.”

By the time he returned, I was sitting upright, feeling the colour seeping back into my face. I drank the water, thinking somewhat nonsensically that Holmes would have given me brandy, and placed the glass on his desk. My hands were steady enough to reassure him.

“I'm terribly sorry,” he said. “I should have realised that the news would be a shock.”

“How did she die?”

His long pause made me think that perhaps he had already told me, while my ears were filled with the rush of receding blood, but by that time I was more concerned with the information than reassuring him as to my sanity. I looked at him sharply and said, “Please, how did Dr Ginzberg die?”

“She was hit on the head. The police thought . . .” and for the second time, his mouth moved while no sound reached me. I waited calmly until his face muscles were still before I asked him to repeat himself. His gaze flicked to the door and back, and I thought that if he got up to summon help, I would physically stop him and force the information from him. Fortunately, assault proved unnecessary.

“Someone broke into her office at home, where she met patients. Apparently he thought she was out, but she was not, and she disturbed him in the process of ransacking her desk for money. He hit her with a statue she had on the desk, and left her for dead. She wasn't found until morning. She never regained consciousness.”

There. I had it now, and hadn't fainted or gone deaf again. I could handle this. I heard myself speak, and sat wondering at my ability to appear rational.