There are 5 books in the The Necromancer's Key series. The newest book is Ascension which came out in 2024.

1
Incursion

Book cover of Incursion
An immersive and ambitious new series from the Aurealis Award winning author of A Crucible of Souls.

A corrupted power stirs from beyond the grave.
A sacred order of knights sworn to protect the world from evil.
The Necromancer Queen will rise again.

Seventeen years have passed since the Necromancer…
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2
Corruption

Book cover of Corruption
A corrupted power stirs from beyond the grave.The Necromancer Queen will rise again.

In the wake of the rebel Niyandrians’ abduction attempt, Anskar DeVantte, now a knight-inferior of the Order of Eternal Vigilance, has set sail with the Grand Master, bound for the mother house in Sansor.

Anskar has already…

3
Subversion

Book cover of Subversion
A corrupted power stirs from beyond the grave.The Necromancer Queen will rise again.

Sent with a contingent of knights to reinforce the Thousand Lakes Kingdom against the aggression of the normally peaceable Soreshi, Anskar DeVantte learns that the Necromancer Queen Talia’s reach is longer than he could have believed.

Cajoled…

4
Conversion

Book cover of Conversion
A corrupted power stirs from beyond the grave.
The Necromancer Queen will rise again.

In Niyas, the new Seneschal plans to use Anskar to further the Church’s aims and grind the Niyandrians and their culture to dust.

But having thrown off the shackles of both the Church and his mother…

5
Ascension

Book cover of Ascension
The final conflict draws nigh as demonic, necromantic, and human forces collide, and the fate of civilization hangs in the balance...

With the Order knights of Branil's Burg defeated, the victorious Niyandrian rebels bend the knee to Anskar, their Melesh-Eloni—“godling”—and the true heir to the throne.

But despite their victory,…