This eighteenth issue of Tales from the Canyons of the Damned consists of four sharp, suspenseful, thought provoking short stories of the sea and things deep-each from a different featured master of speculative fiction. Kevin Lauderdale shares a letter from the past. Terry R. Hill offers scientific insight. Philip Harris tells us 12 things we need to know. And Daniel Arthur Smith shares another clip from the Lost Tapes series Tales from the Canyons of the Damned (canyonsofthedamned.com) is a dark science fiction, horror, & slipstream magazine we've been working on since 2015. What is Dark Science Fiction and Horror? Think of it as a literary Twilight Zone, Night Gallery, or Outer Limits, it's Netflix's Black Mirror in the short story format. And it's a bargain. Each monthly issue has three-to-five sharp, suspenseful, satirical tales from today's top speculative fiction writers. These are Dark Sci Fi Slipstream Tales like you've never read before.