However, Generation X later learned that the Mondo they had rescued wasn't the real Mondo but a clone, a plant-based simulacrum created by Black Tom Cassidy who had infiltrated the Hellfire Club and rescued Mondo. After taking Mondo under his wing, Black Tom created a clone of the young mutant to infiltrate the Massachusetts Academy so that Black Tom could exact vengeance on his cousin, Banshee, who was the headmaster of the Academy. Years ago, Black Tom had raised and used Banshee's daughter, Siryn, in his crimes. Once the father and daughter met, though, the girl mended her ways. Black Tom has always blamed Banshee for taking Siryn away from him and now he planned to do the same with Banshee's students.