Foundryside (The Founders) by Robert Jackson Bennett

She thought it was just another job. But her discovery could bring the city to its knees .

. . In the city of Tevanne, you either have everything, or nothing.

For escaped slave Sancia Grado, eking out a precarious living in the hellhole known as the Commons, nothing is just one misstep away. So when she is offered a lucrative job to steal an ancient artefact from a heavily guarded warehouse, she leaps at the chance. But instead of a way out of Tevanne, she finds herself the target of a murderous conspiracy.

Someone powerful wants the artefact, and Sancia dead. To survive, Sancia will need every ally and every ounce of wits at her disposal - because if her unknown enemy unlocks the artefact's secrets, the world - and reality - will never be the same. 'Robert Jackson Bennett deserves a huge audience' Brent Weeks'An altogether terrific read' Sebastien de Castell'Intricate worldbuilding, fascinating magic, and engaging characters.