Daddy In Charge by Natasha Spencer

Seeing her– alone, asleep, and vulnerable – the intruder struck, satisfying a deep and all-consuming rage.
Amanda Sorensen is running away from her past. Hoping to find it in Paris, she escapes into her work as a botanist.
Arnaud du Lac is a French aristocrat obsessed with work and trying desperately to hide a terrible secret. Until he meets Amanda.
But is there a future for a wealthy French aristocrat and a lowly botanist?

Just as Amanda can’t escape her past, so Arnaud can’t escape his obligations. Or the secret he’s kept hidden – one that threatens the very woman he loves.