Please review our pre-order policy at the bottom of the webpage before placing your order — especially if you prefer to have items shipped separately.

Please note that the following product is a pre-order and is expected to be released/restocked in July 2026.

As our supplier has not provided an exact release/restock date, delays are possible. For this reason, we strongly recommend placing a separate order for this item to avoid potential delays in the dispatch of your entire order.

This supplement features Mandy’s collaborations with nine other famous investigators, such as Silas Marsh, Trish Scarbrough, and “Ashcan” Pete, as they research over 50 eldritch horrors; both infamous and hitherto unknown. In the collection of notes and documents, you’ll also find each of these investigators’ own observations on these creatures’ habits, dangers, and weaknesses, as well as nine mini mysteries to help you incorporate these abominations directly into your game!

*Note: The Thompson Files is a bestiary for Arkham Horror – The Roleplaying Game and requires the Core Rulebook (243316) to play.