Of Spells and Fire. Wardens of Estralia, #1

Three worlds. One fragile alliance. A secret that could shatter everything. Vivienne Valeran returns to the floating isles of Estralia under a false identity, determined to become a warden-guardian of the borders between realms. As the Archdruid's daughter in hiding, discovery means exile. Or worse. When her closest friend returns from the void, months after being presumed dead, he brings no memories-only questions and dangerous attention.
Ancient enemies stir in the World Below, and Atheria's wild magic is growing unstable. As shadowy forces close in on the wardens, Vivienne must master her forbidden powers and confront the truth of her past. Because in a realm where loyalties shift like mist, some secrets are worth killing for. And some truths were never meant to rise.