The Guardian

When Annabelle Grandville's husband died, his younger brother returned from exile in Jamaica to be guardian to Annabelle's son Giles, the new Earl of Weston. Though Annabelle and Stephen were once passionately in love, his defection had caused her to build a new life with his brother. But when murder attempts are made on both Stephen and Giles, she must rethink everything. Regency Romantic Suspense by Joan Wolf; originally published by Warner