Publisher's blurb: PhD candidate Becky Marta vanished during a field trip. Her last known location was Écrins National Park. The investigators must try to find out what happened. Then... they must try to comprehend it. The Wonder At Mercury is a modern day 'narrative first' scenario blending Lovecraftian cosmic horror and the weird science fiction of Clark Aston Smith. It is ideal for a one-shot, or short series of games playable in any Horror system; including guidelines for Call of Cthulhu (CoCth), Trail of Cthulhu (ToC), Cthluhu Dark (CD), and Delta Green (DG).