The Ringing of Twilight

An invisible, intangible entity known as the Ringing of Twilight prowls through various areas. It slowly approaches any sentient being who dares intrude, and those who get too close are never seen again. Each level has you begin at the entry warp. Find and collect the artifacts before returning to the warp to achieve victory. But beware, for once the Ringing of Twilight is roused, it always knows where you are. To survive, you must listen for its constant din to determine where it's approaching from. Whether it's through flooded tunnels, or across perilous heights, learning the layout of each area becomes vital, as the Ringing of Twilight gets faster and faster the longer you stay in its domain.