With her long-time partner and mentor on medical leave and a personal life in shambles, she’s called to the scene of a particularly gruesome murder: the body of a known criminal has been found in a deserted warehouse, a snake sewn into his belly. Obvious signs of torture point to a cunning and cold-blooded killer who will stop at nothing to find what he’s looking for.When Federal Agent Mason Cunningham arrives on the scene, Wallace expects a hostile takeover of the case. But when a scientist with ties to the victim goes missing from a government lab, she needs Mason’s federal connections as much as he needs her local insight, and the two form an uneasy partnership to solve a case that grows more complicated—and dangerous—by the minute. Meanwhile, the killer lurks in the shadows with an agenda no one saw coming, and when Wallace and Mason threaten to get in the way they risk losing everything they hold dear. Including their lives.

    Calls his mother—who raised him on her own in Chicago—every week.Dalton WinthropA white-shoe legacy at Harvard, he's just the most recent in a string of moneyed, privileged Winthrop men in Cambridge. He's got the ease—and the deep knowledge—that come from belonging.These two find enough common ground to become friends, cementing their bond when Spenser is "punched" to join the Delphic Club, one of the most exclusive of Harvard's famous all-male final clubs. Founded in the nineteenth century, the Delphic has had titans of industry, Hollywood legends, heads of state, and power brokers among its members.Dalton Winthrop knows firsthand that the Delphic doesn't offer memberships to just anyone. His great-uncle is one of their oldest living members, and Dalton grew up on stories of the club's rituals. But why is his uncle so cryptic about the Ancient Nine, a shadowy group of alums whose identities are unknown and whose power is absolute? They protect the Delphic's darkest and oldest secrets—including what happened to a student who sneaked into the club's stately brick mansion in 1927 and was never seen again.Dalton steers Spenser into deeper and deeper recesses of the club, and beyond, to try to make sense of what they think they may be seeing. But with each scrap of information they get from an octogenarian Crimson graduate, a crumbling newspaper in the library's archives, or one of Harvard's most famous and heavily guarded historical books, a fresh complication trips them up. The more the friends investigate, the more questions they unearth, tangling the story of the club, the disappearance, and the Ancient Nine, until they realize their own lives are in danger.

    But unlike her famous detective Hercule Poirot, she can’t neatly unravel the mysteries she encounters on this fateful journey.Agatha isn’t the only passenger on board with secrets. Her cabinmate Katharine Keeling’s first marriage ended in tragedy, propelling her toward a second relationship mired in deceit. Nancy Nelson—newly married but carrying another man’s child—is desperate to conceal the pregnancy and teeters on the brink of utter despair. Each woman hides her past from the others, ferociously guarding her secrets. But as the train bound for the Middle East speeds down the track, the parallel courses of their lives shift to intersect—with lasting repercussions.Filled with evocative imagery, suspense, and emotional complexity, The Woman on the Orient Express explores the bonds of sisterhood forged by shared pain and the power of secrets.