From publisher blurb:
For GMs in need of a worthy foe! When you need a complex and motivated villain right now, "The Emergency Villain Collection" comes to your rescue. These nine ready-to-play villains come with complete statistics, backgrounds, motivations, henchmen, treasures, and methods of overcoming the villains beyond force of arms. No mere monsters, these villains have templates, class levels, or both, making each a unique opponent for your PCs. Each villain can stand alone as a comprehensive encounter or serve as the motivation behind a complete adventure.
"The Emergency Villain Collection" contains a bare-knuckles brawler that is more than he appears, a crude goblin runt-nanny, a shapeshifting serial killer, a deceived hero and her duplicitous squires, an exiled fey alchemist with her horrid creations, a vengeful winter ghost, a maddened crew of pirates in a shoggoth-powered ship, a relentless assassin from beyond space and time, and a rampaging treant ranger. Ranging from CR 4 to CR 15 encounters, each villain contains notes on scaling the challenge up or down, to CR 20 and beyond!