*WARNING: THIS REVIEW CONTAINS SPOILERS*
In theory, this book should have been my jam. The story opens with Elizabeth Vogelsang being found dead in a river near her Cambridge home, clutching a glass prism in her hand. Elizabeth is a 17th-century scholar who specializes in Isaac Newton, and her death interrupts her work on a book exploring Newton’s interest in alchemy. Elizabeth’s son, Cameron, recruits Lydia Brooke (a writer, friend of Elizabeth, and Cameron’s former lover) to ghost-write the rest of Elizabeth’s book. Along the way, Lydia tries to unravel the secrets in Elizabeth’s research – secrets that might have led to her death.