Our Great Escape: Stepbrother's Madness

I'm Sabrina Pembrook, Axel Callahan's stepsister, and the lover he's kept hidden for seven years. At first, I think that he'll keep me hidden for a lifetime… until the night of my birthday when he proposes. I'm so excited I can't fall asleep, and apparently, neither can Axel. In the middle of the night, I hear him walk out to the balcony to answer a call. "She said yes. Everything will proceed as planned." The voice on the other end hesitates slightly before saying, "Are you sure you can go through with it? She's your darling whom you've doted on for so long." Axel's voice turns to ice. "Well, it's her mother's fault for being a homewrecker. If it weren't for Elaine, my mom wouldn't have died. I want Elaine to die in the wedding car, just like how my mom died in a car crash." The person on the other end falls silent for a few beats before sighing. "You sure are cold-blooded. You've slept with Sabrina for so many years, and you're still going to kill her mother on the day of her wedding. And if she ever finds out she's not even the bride, she's going to lose her mind." Axel falls silent. Then, he says something else, but I don't want to listen to another word. What I thought was seven years of love finally coming to fruition… turns out to be nothing more than a plot to murder my mom. But Axel Callahan, I'm not going to let you get what you want.