The Shade Isle Campaign
Clern was a 5th level human sorcerer hired by the Church of Acrefatum to carry out experiments in mana stone production. His attempts to improve upon the Church’s Soul-Still lore must have been at least partially successful, since Connor was able to finish his work and produce three very powerful mana stones from the forges in his laboratory (area 0A.22 of the Abbey Rectory).
When the adventuring company encountered Clern, Deliah attempted to charm him. The crotchety old sorcerer recognized the spell on sight, though, and was having none of it; he threw a lightning bolt at the party and laid them low with one fell near-TPK-ing stroke. It was actually Quissler, one of Deliah’s earlier charm victims, who slew Clern. (“Never liked him anyway,” the gnome commented at the time.)
(Assuming she makes 4th level, guess which spell is probably going to be Deliah’s first Signature Spell, am I right?)