Ho Yay: Silvan/Lucinda seemed to have a very...intense friendship. Emily/Adriane seem rather close as well, and Kara/Adriane occasionally borders on Foe Yay. In fact, it almost seems as though the author tacked on a Token Romance for each character just to make them look more straight.
Stoic Woobie: Adriane. She is cold and aloof because her parents are constantly moving, so she never had a home, or any friends, until they all but dumped her with her grandmother in Ravenswood. Even then, she doesn't really get along with most of the school mates, being mostly known as the freak who lives in the woods.
Sweet Dreams Fuel: Everything. The series may center around battling the forces of evil, but its philosophy is stubbornly optimistic, and focuses often on the pure wonder of magic.
Tear Jerker: Stormbringer's Disney Death in Trial by Fire for many fans, as well as Emily killing Ozzie in Dark Mage.