An all-new steamy and angsty billionaire arranged marriage romance from the USA Today & Wall Street Journal bestselling author, Tracy Lorraine. As the daughter of a powerful businessman, I wasn't expecting to inherit much when my father suddenly passed. There was only one thing I truly wanted. The cottage- the only place that ever felt like home. But it turns out that I got a lot more than I bargained for. Kingston Callahan. Arrogant, egotistical, power-hungry, demanding and all the other not-so-charming attributes I despised. He's also my brother's best friend. And now, thanks to my dearly departed father, my husband for the next year. He's everything I hate about the life I was born into. Everything I'm not. One short year...three hundred and sixty-five days in return for the life I've always dreamed of. It's a merger, not a marriage, but I'm not prepared for the hunger Kingston uncovers with his touch. It'll all be over soon, just so long as I remember not to catch real feelings for my fake husband while we're pretending. Dear reader, By His Vow is a standalone enemies to lovers, brother's best friend romance set in the Callahan Billionaires world.