Bram Stoker,
The Jewel of Seven Stars — Chapter XVIII: The Lesson of the "Ka"
(1912)
“ You believe, Margaret, that Queen Tera has voluntarily undertaken to give up her freedom for this night? To become a mummy and nothing more, till the Experiment has been completed? To be content that she shall be powerless under all and any circumstances until after all is over and the act of resurrection has been accomplished, or the effort has failed? ”
