In reading order
The Zero Blessing
Christopher G. Nuttall
The Zero Curse
Christopher G. Nuttall
The Zero Equation
Christopher G. Nuttall
The Family Shame
Christopher G. Nuttall
The Alchemist's Apprentice
Christopher G. Nuttall
The Family Pride
Christopher G. Nuttall
The King's Man
Christopher G. Nuttall
The Lady Heiress
Christopher G. Nuttall
The Family Name
Christopher G. Nuttall
The Zero Secret
Christopher G. Nuttall
The Family Secret
Christopher G. Nuttall
The Alchemist's Secret
Christopher G. Nuttall
The King's Secret
Christopher G. Nuttall