The Captain's Valentine (The "Other" Trents #3)
Jane Charles

Miss Perdita Valentine is happy with her lot in life. She’d been raised in a loving family and now she was in London working in a foundling home where she is able to care for children who had been orphaned just as she. She could not imagine her life being any different until a handsome captain delivers a child to their doorstep. However, after a threat to her life, Perdita soon learns that not all is what it seems. Not even her past.
Unfortunately, the only person she can trust is a confirmed bachelor who has stolen her heart but he might be forced to abandon her to face a dragon of a duchess.