- Treasuring Amber, Helen Hardt
- Trusting Sydney, Helen Hardt
- Hardt, Helen, Sex and the season, 4
- Hardt, Helen, Temptation saga, bk. 6
- Rose in bloom, Helen Hardt
- Hardt, Helen, Temptation saga, bk. 3
- Hardt, Helen, Sex and the season, 1
- Lily and the duke, Helen Hardt
- Sophie's voice, Helen Hardt
- Lady Alexandra's lover, Helen Hardt
- Hardt, Helen, Sex and the season, 2
- Taking Catie, Helen Hardt
- Hardt, Helen, Sex and the season, 3
- Hardt, Helen, Temptation saga, bk. 5