He needed a nanny. His daughter needed a mother. Nobody asked Ronan Black what he needed.Isla came with references, boundaries, and a heart she'd already broken once before. Ronan came with a contract, a penthouse, and walls nobody had ever made it past. Five-year-old Nora came with a paper crane and absolutely no interest in following the rules.What starts as a job becomes something neither of them has a word for — something explicit, complicated, and completely off-limits. But when a secret surfaces at the worst possible moment, Isla and Ronan will have to decide if what they've built together is worth destroying everything they've protected.Not in the job description. Completely impossible to ignore.