Five-year-old Rowan leaves the royal hospital alone in exchange for treatment for his mother. Leon takes him in and teaches him mechanical craftsmanship. Twenty years later, a clover mark on the plans for an air-purifying mask, an old sundial bracelet, the taste of chamomile cake, and half a family crest lead Evelyn toward her son. At an awards ceremony, however, Maeve and Adrian publicly betray Rowan. Evelyn stops the assailants, suspends the award, and reclaims control of the workshop, determined to hold those responsible for violence, stolen credit, and abuse of power accountable. The Shaw family then tries to use the Southern military to seize the plans, only to be stopped by Gabriel, who arrives in time. Their reunion is not the end: with Leon and his workshop friends, Rowan recovers his early training records, undergoes a verification of the invention's authorship, improves the portable air-purifying mask, begins controlled trials, refines the design, and establishes his own inde
