A scientific thriller this week from Thomas Hoover.
Alexa Hampton runs her own interior design firm in New York’s Soho but now a heart mishap threatens her life. Her black-sheep younger brother insists she go to a New Jersey clinic owned by his eccentric boss for stem cell experiments. There she and her long-ago lover, a medical reporter, uncover a bizarre experiment to reverse the aging process.
It's pretty good. You have to get it while it's free.