Dani Prado is terrified of the dark, so when something crawls from the depths of the earth through the local mine to snatch people and pets, she is understandably afraid.
But now her younger brother Bobby is counted among the missing and she fears the worst. The police won’t help and the rest of the town is afraid to go looking for the captives, too. Wait, they tell her, until reinforcements come to help.
Unable to tolerate the thought of her brother in the clutches of some shadowy monster, she decides to go into the mine looking for him. The darkness beckons and the shadowling awaits. Dani will need every bit of her skill, ingenuity, and courage to enter a world without light, find her brother, and return. Hopefully with her body and mind still intact.