Arthur Conan Doyle,
The Doings of Raffles Haw — Chapter XIII
(1892)
“ But Robert's brain was excited, and he could not sleep. The events of the day had been enough to shake a stronger man. There had been the revelation of the morning, the strange sights which he had witnessed in the laboratory, and the immense secret which had been confided to his keeping. Then there had been his conversation with his father in the afternoon, their disagreement, and the sudden intrusion of Raffles Haw. ”
