The Chaos Gate

From Helen Lowe comes The Chaos Gate the fourth book of The Wall of Night series.
Note! Some UK sites showed The Wall Of Night Book #4, under the title The Golden Fire, being published on December 10, 2020. This is a false rumor and Helen Lowe has stated that this book working title is still "The Chaos Gate".
Helen Lowe
Helen Lowe won the inaugural Robbie Burns National Poetry Award in 2003 and was the recipient of a New Zealand Society of Authors/Creative New Zealand award for emerging writer. For Thornspell, she received the Sir Julius Vogel Award for best young adult novel. She received a second Vogel Award as best new talent in the fantasy field.
In addition to her writing life, Helen has a second-dan black belt in aikido and represented her university in the sport of fencing. She lives in a ninety-year-old house with a woodland garden in Christchurch, New Zealand, which she shares with her partner, Andrew, and two cats.
The Wall of Night
Series contains 4 primary works and has 4 total works. Current series reading order on below.
Fortresses of shadow and decay.
An ancient war.
A world where everyone could be an enemy - and no-one is quite what they seem.
A society divided by prejudice, suspicion, and fear.
Lost powers and undiscovered secrets.
A young untried champion and a promise that has endured down centuries - that she should not have to stand alone.