It was a common belief that Emotive magic didn't work on beasts and monsters. That was what we were taught during our first days at the Academy, but… that was actually a half-truth.
For the first years, this was indeed true.
Most first years didn't have to deal with terror-ranked creatures. The most they'd have to deal with would be high-class Junior-ranked ones.
For that reason, the information was not revealed, but once a beast turned into a Terror-ranked one, its cognitive abilities became much more refined and complex.
The higher ranked the monster the more complex their mind became.
This was something that I learned from Owl-Mighty, and while the Queen didn't exactly have a consciousness as developed as Owl-Mighty's, and its emotions were still non-existent, that didn't mean she couldn't feel Emotive Magic.