The Doomsday Machine

Publisher's blurb: Red crystals cluster at the heart of this underground laboratory, carved into a remote mountain. Its glowing core shimmers crimson dangerously, while a control panel with glyphs sits further back. Metal grates cover thick cables, while multiple stone or tiled rooms contain glowing interfaces, interspersed with maintenance hallways and living areas. Few know this laboratory exists, and even fewer are allowed to leave and speak of it.