She was played by Lesleh Donaldson.
Lyla is the verbally abused daughter of the titular Great Montarro, who was preparing his latest trick, The Coffin of Blood. The trick revolves around the performer entering a coffin and surviving being stabbed with a dozen falling knives. Unbeknownst to Montarro, part of the trick involves the cursed Houdin Box, and a person had to be in the box for the performer to survive. The victim in the box feels the knives instead and dies instantly. Also unbeknownst to Montarro, Lyla was behind the acquiring of the box, getting it by killing its last owner, a magician known as Fahteem the Magnificent, who used it to perform the same trick, which he called, "The Cabinet of Doom." She also killed Fahteem's assistant, Robert Simpson, who attempted to acquire the object.
Micki later runs into Lyla, thinking that Montarro's behind the deaths and warns her. Lyla later brings her down to the basement and shows her the box, which has blood all over the inside, much to Micki's disgust. At that moment, Lyla turned heel and locked Micki inside, and later cackled evilly at her shocked intended victim. Lyla revealed everything to Micki—the murders and the acquisition of the box—and said that no one would get in her way of getting to the top. After mocking Micki, the evil Lyla cackled once again and left her in the cursed object. Ryan and Jack also figure out that Lyla is the real culprit and they discover that Micki is in the Houdin Box in the basement, just as the Coffin of Blood trick is about to be performed. They get Micki out of the box, and as a result, the knives kill Montarro, causing Lyla to scream in pained agony.