Krikvel Academy. The Mysterious Librarian. Book 1

I boarded a train in Yaroslavl and... found myself in an ancient steam locomotive that was carrying students to the Magic Academy "Krikvel". Now I am a first-year student and must spend five long years mastering the magic of the elements. Everything would be fine, but students here occasionally disappear. It seems the rector doesn’t care at all. But when my friend goes missing, I take matters into my own hands. But who should I take as an ally? Maybe the mysterious dragon librarian? And what should I do if the evidence points to my assistant? Is he really involved in the students’ disappearances? And why does my heart flutter so near him?