INTERNATIONAL BEST SELLING AUTHOR Book two in the series, On His Terms, available now!Mastered :At The Den nothing is off limits… In an idyllic mountain setting on a dozen secluded acres of land, Master Damien Lowell has made his spectacular Colorado home—the Den—available to a select group of people. Doms and subs are invited to explore the intricate nuances of dominance and submission, of sadism and masochism, of exquisite bondage, and strict discipline.The Den—where the wildest of fantasies becomes reality, lives are transformed, and limits are shattered.With This Collar by Sierra CartwrightBook one in the Mastered SeriesIf you enjoyed Fifty Shades of Grey trilogy by E.L James, or Bared to You by Sylvia Day, then this book might just be for you! Make this one of your top romance novels of the year!Julia Lyle will have nothing to do with domineering men, no matter how tall, dark, and sexy. But Dom Marcus Cavendish will be satisfied with nothing less than collaring the fiercely independent Julia.Nothing could have shocked her more…Julia Lyle is invited to her best friend’s wedding and is stunned when Lana kneels to accept her husband’s collar. When Julia starts to object, firm, relentless hands land on her shoulders. The man behind her threatens to turn her over his knee if she interrupts. She’s outraged, but there’s no doubt he’s serious.After the ceremony, he offers her a glimpse into her friend’s lifestyle, if she’s brave enough to accept.Master Marcus Cavendish is everything she doesn’t want in a man—dominant, self-assured and arrogant. So why can’t she resist him?Telling herself that learning about the lifestyle will make her a better friend, Julia agrees to submit to Master Marcus, but only for the evening. Firm and unrelenting in his handling of her, he introduces her to his tawse and the pleasure/pain of a spanking delivered by a competent Dom. The experience unnerves her, making her question everything she thought she knew about relationships, and his forced orgasms leave her shattered.No doubt the scene seduced her, and that makes her doubly determined to avoid him. She has fought hard for her freedom and vowed only to date nice men, and Master Marcus is anything but safe.Marcus is undeterred. Julia is a natural sub. The way she responded to his touch, his voice, his punishment proved it. Now he has to convince her to yield to him, submitting to his tawse as she kneels to accept his collar.Sierra CartwrightOther Books by Sierra Cartwright: Mastered Series:On His Terms (Book two) ASIN: B00CH41632Single Titles:Bared to Him ASIN:B00APM2MEUJane Eyre ASIN: B008V1YDTEHer Two Doms ASIN: B009CZY24EThree Way Tie ASIN: B007Q2DRFUBound and Determined ASIN: B005KLVNQOUnbound Surrender ASIN: B003Z0D1U8Voyeur ASIN: B003Z0D0W2S&M 101 ASIN: B003VS0E40Fed Up ASIN: B003VP9ZGQThis Time ASIN: B003VIWUCOSigned, Sealed & Delivered ASIN: B003UV8M1AWalk on the Wild Side ASIN: B003TLMN3EAnthologies:Bound to the Billionaire ASIN: B00A9X8U00Subspace ASIN: B0077RM4W6Night of the Senses ASIN: B003XT5R8KBound Brits ASIN: B003URRRPQNaughty Nibbles ISBN-13: 978-1906590246About the Author: Born in Northern England and raised in the Wild West, Sierra Cartwright pens book that are as untamed as the Rockies she calls home.She's an award-winning, multi-published writer who wrote her first book at age nine and hasn't stopped since.Sierra invites you to share the complex journey of love and desire, of surrender and commitment. Her own journey has taught her that trusting takes guts and courage, and her work is a celebration for everyone who is willing to take that risk.