"It Came From Down Below" (2017), Short story horror

Synopsis:  A twelve year old boy who is easily scared finds himself locked in the attic as his older teenage brother tries yet again to show him there's nothing to fear accept his overactive imagination. He's able trade an unmarked tape he found in exchange for his freedom. That should've been the end, but curiosity gets the best of him as he discovers some things are best left unseen.

Link:https://www.wattpad.com/494437345-it-came-from-down-below