From publisher blurb:
Seven Spectacular Mythic Monsters for your AP!
Mythic Module Monsters: Rune Lords 5 brings you mythic versions of all six monsters in the bestiary section of issue #5 in the official Rune Lords AP:
ercinee
Herald of Dreams
Herald of Lamashtu
marsh giant
shemhazian demon
witchfire
The Mythic Monster Manual and Mythic Monsters series from Legendary Games have greatly expanded the number of mythic monsters available for use in Pathfinder campaigns of any kind, but if you want to add a bit of mythic mayhem to the classic adventure paths produced by Paizo, Inc., the Mythic Module Monsters series is designed just for you! Rather than having to hunt through multiple books trying to find the odd monster here or there to enhance your adventure path experience, you'll find the monsters introduced in that AP right here, ready to pick up exactly the issues you need to enhance the mythic monsters in your favorite adventure! You can pick them up a few at a time or collect an entire series for your favorite AP!