The weight of a city lies on her shoulders with danger lurking around every corner, and Wren, along with her new companion Nazira, travel to Tamvir Skypeak. On a quest that will test them to the extreme, their choice becomes simple, yet demanding. Will they find the Ioun Scale before others, or will the flying city of giants fall to ruin in the sea below? It's a race against the clock, with enemies emerging at every turn, challenging Wren, amidst a growing sensation of wanting to keep Nazira safe.

Hallowed Souls is a story set in the same world as The Night's Weave Series.