<P> A year later, Regan still struggles with guilt over her brother's death, Evelyn is in the final stages of pregnancy, and Lee is fruitlessly trying to make radio contact with the outside world . Lee attempts to upgrade Regan's cochlear implant to restore her hearing, but the device fails . Later, Lee takes Marcus to a nearby river to teach him to fish while Regan visits the memorial to Beau at the bridge where he was killed . Lee explains to Marcus that they will always be safe from the creatures so long as louder sounds mask their audible movements . Alone at the house, Evelyn goes into labor earlier than expected . While making her way to their house basement, she steps on a large nail . In pain, she accidentally drops a glass picture frame and alerts a nearby creature . Evelyn flips a switch that changes the exterior house lights to red as a danger signal to the others, and struggles to remain silent during her contractions . </P> <P> Arriving at the farm and seeing the lights, Lee instructs Marcus to set off fireworks as a diversion . He finds Evelyn hiding in the bathroom with their newborn son . The baby starts crying, attracting a creature, and they narrowly avoid another attack on the way to the specially modified barn basement . Lee leaves to find the other children, after promising Evelyn he will protect them . Evelyn falls asleep but wakes to discover that the barn basement is flooded with water from a broken pipe and that a creature is stalking her . </P> <P> Regan hurries back to the farm . She and Marcus take refuge atop a grain silo, lighting a fire to alert their father to their whereabouts . However, they run out of lighter fluid and the fire dies down, causing Lee to assume that they are not there . A hatch door gives way and Marcus falls into the silo . He sinks into the corn and nearly suffocates, but Regan jumps in and saves him . They avoid further danger by clinging to the fallen silo door and survive a subsequent creature attack by hiding under it . Regan's repaired cochlear implant reacts to the proximity of the creature by emitting a piercingly loud high - frequency sound that drives the creature away . The children escape from the silo and reunite with Lee . </P> <P> The creature returns and Lee attacks it with a Pulaski, while Marcus and Regan hide in a pickup truck . Lee is wounded and Marcus shouts, attracting the creature to the truck . Lee uses sign language to tell Regan and Marcus that he loves them before sacrificing himself by yelling to draw the creature away from his children . Regan and Marcus roll the truck down a hill to escape and reunite with Evelyn and the baby at the farmhouse . </P>

Who dies at the end of a quiet place