A single dad, a wandering librarian and Christmas lights bright enough to heal lonely hearts! Lonely lighthouse keeper Declan Hayes keeps Ballycove’s beam cutting through November gales, yet grief still clouds his days. Enter Bríd Callahan , the new librarian whose mobile book van and radiant hope make even the wild cliffs feel like home. Her story-times enchant Declan's six-year-old Molly and coax rare smiles from Declan. Then a fierce storm maroons Bríd overnight in the lighthouse, where candlelit cocoa and whispered dreams kindle the first glow of a Christmas miracle—for a father, a daughter, and a wanderer alike. An unexpected transfer to an automated lighthouse up north promises Declan safer hours, higher pay—and the end of the Ballycove roots Molly has just begun to grow. Bríd knows all about running: she left Dublin to outrun career burnout, not to break a child’s heart. As she and Molly secretly plan a carol service inside the lantern room, Bríd falls for the devoted dad who fears loving—and losing—again. But with Christmas fast approaching, Declan must choose between security in exile or risking everything for love and home. Will the lighthouse guide Declan away from Ballycove—or lead all three into the brightest Christmas of their lives