Author Susan Welch will discuss "A Thread So Fine," a historical fiction novel about two sisters on the brink of adulthood in post-WWII St. Paul. The sisters have always been each other's close companion growing up. As young women ready to embrace promising futures, each sister endures her own life-changing tragedy and their powerful bonds of love and loyalty threaten to break under the weight of trauma and loss, secrets and misunderstandings. Books will be available for purchase and signing. Sponsor: Friends of the Excelsior Library. Collaborator: Excelsior Bay Books.