A.C. · A. Castle · Amber Castle Pharm.D. BCPS BCCCP · Dr. Amber Castle Pharm.D. BCPS BCCCP
| title | ISBN-13 | year of publication |
|---|---|---|
| Isabella the Butterfly Sister | 978-1-4713-0647-1 | 2012 |
| Lily the Forest Sister | 978-1-4713-0646-4 | 2012 |
| Spell Sisters: Amelia the Silver Sister | 978-1-4713-0660-0 | 2013 |
| Spell Sisters: Chloe the Storm Sister | 978-1-4713-5450-2 | 2013 |
| Spell Sisters: Evie the Swan Sister | 978-1-4713-1241-0 | 2013 |
| Spell Sisters: Grace the Sea Sister | 978-1-4713-0746-1 | 2013 |
| Spell Sisters: Olivia the Otter Sister | 978-1-4713-5449-6 | 2013 |
| The Spell Sisters: Sophia the Flame Sister | 978-1-4713-0645-7 | 2012 |