D G Compton & Frances Lynch 
Stranger at the Wedding [EPUB ebook] 

Mistaken identity, romance, suspense – perfect for fans of Bridgerton’I cannot marry him, ‚ said Caroline. ‚I am not Kate. I am only her twin.‘ All Caroline knew when she came to her senses was that when her twin sister’s desperate plea for help came, she had rushed to Italy to be with her. There was a coach accident – but she can remember nothing more . . .Now suddenly Kate had disappeared and Caroline found herself wearing Kate’s clothes and unable to convince anyone she was really Caroline. But she had to convince someone. And quickly. Because Kate was about to marry her Italian nobleman cousin, Leoni . . .