The Weirn books / Chmakova, Svetlana

"After her terrible adventures in the Silent Woods, Na'ya's world seems to have returned to normal...that is, except for the nightmares that keep haunting her. What she needs is the power to protect everyone in case the evil scientist returns, and she has the perfect solution--she'll turn into a dragon, once and for all! With help from Ailis and Jasper, everything seems to be going according to plan. But what's that dark shadow slithering around the spellcasting range...?--Back cover.

"In the Night Realm, vampires, shifters, weirns, and other night things passing for human prowl the streets ... but they still have to go to school! Ailis and Na'ya are pretty average students (NOT losers), but when a shadow starts looming and a classmate gets all weird, they are the first to notice. It gets personal, though, when Na'ya's little brother D'esh disappears -- It's time to confront the secrets of the forbidden mansion in the Silent Woods!--Back cover.

"In the Night Realm, vampires, shifters, weirns, and other night things passing for human prowl the streets ... but they still have to go to school! Ailis and Na'ya are pretty average students (NOT losers), but when a shadow starts looming and a classmate gets all weird, they are the first to notice. It gets personal, though, when Na'ya's little brother D'esh disappears -- It's time to confront the secrets of the forbidden mansion in the Silent Woods!--Back cover.