Crossword clues for erasement
erasement
The Collaborative International Dictionary
Erasement
Erasement \E*rase"ment\ (r[=a]s"ment), n.
The act of erasing; a rubbing out; expunction; obliteration.
--Johnson.
Wiktionary
erasement
n. erasure; obliteration
Usage examples of "erasement".
So far all you've come up with is the possibility of an erasement spell.
The obvious conclusion is that there was no erasement, which would mean the events as depicted are true, Lisutaris is the killer.