Sinkhole urban areas due to water main breaks or sewer collapses when old pipes give way. They can also occur from the overpumping and extraction of groundwater and subsurface fluids. Sinkholes can also form when natural water-drainage patterns are changed and new water-diversion systems are developed. Some sinkholes form when the land surface is changed, such as when industrial and runoff-storage ponds are created; the substantial weight of the new material can trigger a collapse of the roof of an existing void or cavity in the subsurface, resulting in development of a sinkhole. Sinkholes tend to occur in karst landscapes. Karst
A Knight of the Word that lead her to this truth. John realizes that he's been subtly led toward the Void ever since Stefanie came into his life, after San Sobel; as a shape-shifting demon, Stefanie forged documents to support the embezzlement accusations, attacked Nest and her friends in the park, set fire to the shelter to explain the wounds she'd sustained trying to kill Nest, lied about John being fired, and morphed into Simon at the museum so John would be tricked into killing the real, innocent Simon and completing his turn to the Void. Finally, John confronts Stefanie at his apartment. She does