Nona the Ninth (Locked Tomb, Book 3) - Tamsyn Muir

In many ways, Nona is like other people. She lives with her family, has a job at her local school, and loves walks on the beach and meeting new dogs. But Nona’s not like other people. Six months ago she woke up in a stranger’s body, and she’s afraid she might have to give it back. The whole city is falling to pieces. A monstrous blue sphere hangs on the horizon, ready to tear the planet apart. Blood of Eden forces have surrounded the last Cohort facility and wait for the Emperor Undying to come