Die Glocke

From publisher blurb: According to the legend, in 1944 the SS built a mysterious device deep in a Silesian mine shaft. Its bell-like shape gave it the nickname “die Glocke,” or “the Bell,” but the purpose of “Project Lantern-Bearer” remains a mystery to this day. Was it a time machine? A zero-point energy generator? A gateway to another world? Die Glocke cuts through the legend to the truth — and then piles on a bunch more legend. Plus, a look at “die Glocke” as a NIGHT’S BLACK AGENTS node, a TRAIL OF CTHULHU seed, or a ESOTERRORIST black site