The Claws of Winter by Nazri Noor

Revenge is a dish best served cold.
The guild of artificers is so close to completion, Jackson Pryde can almost taste it. Befriending the Black Market’s guilds has paid off. Everyone agrees that Jackson should become master of the artificers, even Mother Dough, the powerful guild of bakers.
But it’s not all sugar and spice. A strange sorcerer has reawakened Xander’s interest in Incandescence. The second AI has unearthed a bizarre blueprint. And not everything is as it seems in the Verdance.
Tensions mount as the fae courts question the value of human friendship – and human life. Jackson and Xander may have saved the King of Summer, but now they must face the wrath of the Queen of Winter.