Progenitor is like half history book, half Wild Talents super-supplement. Pun intended. This is a huge book that describes a campaign frame in which one Talent started it all. From there, the power spread to offspring and throughout the populace. There is a TON of rich history of the world, how Talents have affected it, and how you can run your game during any number of ages. It also provides new options for Talents (intrinsic traits, sources, etc.) and clarifies just how powerful someone with an Xd pool of dice really is. I love the added flavor and this is indeed a robust campaign frame. With the low price of the Essentials book, you can always afford to pick this up and launch an epic campaign with an entire world fleshed out at your fingertips.
[4 of 5 Stars!]