While recording abandoned vacuum postal systems in a small German city for the Durchsickern Institute, Rachael and Ben make a discovery that should be impossible. What at first seems like a measuring error reveals the dangerous and disturbing Crawl Space.
Once they enter the Crawl Space, will Rachael and Ben make it out again in one piece, and why is Herr Bettelmein so interested in their discovery?
"Steve Toase is an immensely skilled storyteller" -Laura Mauro, British Fantasy Award-winning author of Sing Your Sadness Deep
