From the Chaosium website:
A Sextet of Diverse Mythos Adventures
This monograph is the result of our first Chaosium.com Call of Cthulhu Adventure Contest. We received entries from all over the world, and it was rather difficult to narrow the winners down to a number small enough to fit into one monograph (and this is still the largest we've released). This first contest was fun enough that we’ll likely do more of them. Keep an eye on our webpage for the details.
The adventures offered herein will take you to the 1920’s Miskatonic Valley, Rolthin Abbey, The Ardenne of the tenth century, 1643 England, 1960’s San Francisco, and 1920’s Bhutan. Investigators will take on the roles of Cornish Royalists, Chinese Triad gang members, detectives, and occult researchers.
We hope you enjoy these Strange Tales of Dread and Wonder.