There are 4 books in the The Rose Shield series. The newest book is Kari's Reckoning which came out in 2017.

1
Catling's Bane

Book cover of Catling's Bane
In the tiers of Ellegeance, the elite Influencers’ Guild holds the power to manipulate emotions. Love and fear, pain and pleasure, healing and death mark the extremes of their sway, but it’s the subtle blends that hook their victims’ hearts. They hide behind oaths of loyalty and rule the world.…
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2
Oathbreakers' Guild

Book cover of Oathbreakers' Guild
Catling, an aspirant of the Influencers’ Guild, learns to wield the power of the garden carved into her skin. Friends are fewer than enemies, and those who wished her dead now plot her failure. Sworn to the young queen, she enters the world of Elan-Sia where the powerful maneuver for…

3
Farlanders' Law

Book cover of Farlanders' Law
Immune to influence, the Cull Tarr infiltrate the tier cities, and the Shiplord plies the queen for a bond that will cede her realm. Catling’s daughter, Rose, becomes collateral in a game of power, and the only way to save her is to lose her. Oathbreaker and lawbreaker, Catling rebels,…

4
Kari's Reckoning

Book cover of Kari's Reckoning
The epic adventure concludes as the Shiplord vies for what he desires—the throne of Ellegeance. Their power in jeopardy, influencers surrender their oaths, their loyalties fractured. Rose, a child of untrained and reckless talent, once again becomes a pawn in the quest for control. As the Cull Tarr solidify their…