by Robert Heinlein
(1970)
Publisher: Ace Books
Johann Sebastian Bach Smith is immensely richand very old. His mind is still keen, so he has surgeons transplant his brain into a new body.
The operation was a great success but the patient was no longer Johann Sebastian Bach Smith. He was now fused with the very vocal personality of his gorgeous secretary, Eunice-with mind-blowing results! But Eunice hasn’t completely vacated her body.