Banshee In A Well
Tim is five years old when he drowns in his parents' pool. He dies quietly, waiting for parents who love him, but will never be there, to realise that something is wrong. They never show up, and he sinks into oblivion.
When he wakes up and claws his way out of the water, the sun has set, and the lights of his house are on. He is cold and wet and his lungs burn.
But most of all, Tim is alone.
(If you die and no-one is there to see it, were you ever alive in the first place?)