This volume contains the novels House of Blades, The Crimson Vault, and City of Light, as well as the short story collection The Traveler’s Gate Chronicles, all of which are available separately.
https://www.amazon.com/Travelers-Gate-Trilogy-Complete-ebook/dp/B00ZK3KUE8?tag=slickdeals&ascsubtag=4468f1d084f111eba0880e86e249807d0INT&sdrc=staff