Stranded With The Secret Billionaire

Rescued by a brooding stranger… 
Jilted heiress Penny Hindmarsh-Firth sets her broken heart on escaping high-society city life. Instead, she's trapped by floods in the Outback and a handsome stranger on horseback comes to her rescue! 
After a betrayal shattered his life, Matt Fraser withdrew from the world—but he can't deny Penny a refuge. The secret billionaire is reluctantly intrigued as the society princess starts proving there's more to her than meets the eye…