Lada Dragwlya has claimed Wallachia as her own since birth. It is her homeland, the place where her ambition was fostered and her spine of steel cast. After being taken from and left in an enemy empire by her father, Lada's life is one of survival: she must return to Wallachia. However, for all her physical fierceness of unbeaten record of fights, the force of the Ottoman Empire is not something she can win over by simply slashing a sword at it.
Before the onion ring accident, Santi had a father who taught him to survive in the woods and an intelligent sister who he could be proud of. Before beating up his best friend, Victor was a proud Eagle Scout and had a mother who loved him. Before Tyler left her, Amelia was the perfect daughter who was molded by a rich family template. They meet through juvie, the Bear Canyon Wilderness Therapy program. Each night of the therapy campout, a member of the whole troop is asked to share their story, their sorrows, their secrets.
Tortall: A Spy's Guide is centered around the spy system that was set up by George of Pirates Swoop, formally the Rogue of Corus. There is a collection of background information that spans the Lioness series, The Immortals series, Keladry's series, and Aly's duology in the Copper Isles. There are accurate timelines, letters about characters, events, codes, and rules about being a spy and the lattice structure of their leadership, character profiles, diary entries, Tortallan advertisements, and even some more characterization of the family of Pirate Swoop.