In the boardroom, he's the ultimate power. In the dungeon, he's the ultimate pleasure.

But when it comes to love, even he can't resist her fire. No one dares defy Damien Lowell.

Until her. Catrina Davidson.

Fiery Domme. Irresistible temptation.

She'll play his games. But she won't submit.

He'll push her limits. But he won't let her in.

Two weeks. No rules.

No mercy. As the clock ticks down, the lines blur.

Pleasure and pain. Lust and love.

She's his perfect match. His ultimate undoing.

Losing her isn't an option. Keeping her means facing his darkest fears.

In the Den, there's only one rule: Total. Complete.

Surrender. The stunning, bestselling Mastered series is back in a special tenth-anniversary edition featuring additional scenes.

In the Den is a steamy billionaire Dominant emotion-filled romance novel. Welcome to the spectacular Colorado mountains where masterful billionaires ignite the fantasies of the women they love.

All books are standalone novels that can be read in any order and have a guaranteed happily-ever-after ending. .