Sheikh no Ryakudatsu Ai

When researching an ancient sunken ship in the Arabian Sea, Belle is kidnapped by rebels and confined on a small, deserted island! One stormy night, she is rescued by Rafiq, a strong man, who turns out to be the prince of the kingdom of Q'aroum. But Belle is once again locked up -- this time in his palace. To her astonishment, Rafiq even demands that she marry him within one week! What's his purpose? The young prince Rafiq has a secret reason for keeping Belle in his palace... (Source: Harlequin)