“The Rossetti Letter” by Christi Phillips is a historical fiction novel that intertwines past and present narratives, set against the backdrop of 17th-century Venice. The story follows Claire Donovan, a modern-day historian researching the life of Alessandra Rossetti, a courtesan who played a pivotal role in uncovering a Spanish plot against the Venetian Republic in 1618. As Claire delves deeper into Alessandra’s life, she uncovers secrets that challenge her understanding of history and her own personal life.