4 October, morning.

⁠—Once again during the night I was wakened by Mina. This time we had all had a good sleep, for the grey of the coming dawn was making the windows into sharp oblongs, and the gas flame was like a speck rather than a disc of light. She said to me hurriedly:⁠—

“Go, call the Professor. I want to see him at once.”

“Why?” I asked.