Kingdoms of Legend: The Hidden Threat (Relics of the Lost Gods, part 1) is a 36-page PDF (33-pages if you remove the covers and OGL page) Adventure for the Pathfinder RPG written by Brent Evanger and published by Interaction Points Games. This product is the part of IPG’s Kingdoms of Legend line.
The layout is a standard page in two columns (except for the introduction and fiction). Two pages of full color maps (where the inside front covers would be in the print version). The interior art is limited and in black and white but supports the product well.
The Hidden Threat is the first part of a planned set of three linked adventures but it is a complete adventure in and of itself. Set in the Kingdoms of Legend setting (an alternate 1415) it should be simple enough to convert over to any other standard fantasy setting (though an appendix covering the basics of the setting is included as well). Designed for 1st level characters (pre-generated characters for the setting and adventure can be found at the Interaction Point Games webpage) it is a fairly straightforward adventure though players might be a bit reluctant at first at it starts with the characters being hired to investigate a threat under a castle’s privy.
The adventure is fairly linear, as is standard for a low level adventure, and sets the stage for the further adventure. The product includes six new magic items and one new creature (the rock grub) which plays an important role in the adventure. Lastly, there is a random table for those brave(?) characters who choose to sample some of the bizarre underground mushrooms.
Overall, The Hidden Threat is a solid adventure, nothing particularly novel but perfectly serviceable especially for an introductory adventure. A few more suggestions on how to tie characters into the setting and adventure would have helped to have made this adventure even better but it is a good starting place.
Disclosure: As a featured reviewer for RPGNow/DriveThroughRPG, I received my copy of this product for free from the publisher for the purpose of this review.
[4 of 5 Stars!]