Boston, Massachusetts, December 1922. With the turn of a post office box key, investigators are pitted in a deadly game of snake and mouse against a soul-stealing entity and a Southern belle who is so much more than she appears. Content Warning: soul removal, forced PC marriage, bugs, and mention of indigenous peoples using antiquated terms. Mail-Order Bribe is a 1920s Call of Cthulhu 7th Edition adventure for 3-6 players that continues from the first two of the series, Taken For Granite and Deep-Seeded Secrets, or can be played as a one-shot adventure. The Appendix includes: 6 pregenerated character sheets 4 NPC portraits and stat blocks 11 player handouts A map of Boston, Mass. 1 new mythos creature stat block 1 Table for Wedding Gifts 2 arts & crafts handouts Leads to the next part of the adventure Historic Notes highlighting neat bits of history