Lord Aeratas in Practical Adept — author typo?

In Practical Adept, Chapter One: The Beryen Council (Part One: Deliberation), the text gives one line to Lord Aeratas during the post-war Carneduin session:

And returned to his lair in the Black Vale. That is, according to our sources.Attributed to Lord Aeratas, Practical Adept, Chapter One

Resolution: this is a typo in the source manuscript. Lord Aeratas died in Necromancer (Book 10) when Mycin Amana stabbed him with a necromantic blade after the Scholars team recovered the Handmaiden from the Ghost Rock vein. Minalan then resurrected him and his late wife Hynalinae into Kulla Alon giant bodies and sealed them both into the Cavern of Ages as its new guardians — bodies described as too large to leave the cavern and anchored there as its wards.

The audiobook reads the same way (per reader confirmation), which rules out an ebook-conversion artifact and locates the error in the authoritative source manuscript. The line was almost certainly meant to read Lord Letharan: the same chapter gives Letharan another line two paragraphs later where his name is also misspelled (as "Letheran") — two Alka Alon name-mistypes in close succession, on a chapter where Letharan is explicitly seated at the council but Aeratas is not.

Key tell in the narration: the chapter opens with Minalan's party filing into the council hall and explicitly listing who is already seated:

Lord Letharan was already seated, as was Aronin Ladas, Lady Micrethiel and other members of the Alka Alon Council who sat on the Beryen Council as well.Minalan, Practical Adept, Chapter One

Aeratas is not among the named seated councillors. The wiki treats the attributed line as a manuscript typo for Letharan, and does not list a Book 17 appearance on Aeratas's character page — but preserves the observation here for readers who notice the inconsistency in the book or the audiobook.