That title sounds like a bad title for juvenile fiction, but it's the best I could come up with. If you can do better, leave a comment.
Walking through the trails of The Commons, the trail I walked on next to The Greenspire School was overrun with water. As I continued up the trail, I came across a rust-colored concrete plug from which bubbled a steady flow of water. We had steady rains for the past few days which, using my limited powers of deduction (or induction or whatever smart people, which I am not, use) caused an overfilling of some tunnel or tank from the olden days of the mental hospital. Scooby Doo could solve this mystery, but that is the best I could do.
And that gnarled tree appears to be leaning over the well, hiding it, protecting whatever evil being lies entombed inside. Or maybe the tree yanks vandals that spray paint signs late at night area and stuffs them into the well, never to be seen again...