Tunnel of Bones by Victoria Schwab Book Review

I’ve been reading the series City of Ghosts, and I love it. I’m currently on the second book and no new characters have been introduced yet. During the story of City of Ghosts, Cassidy Blake is just a normal girl, with a ghost best friend! She just wants to sit back and relax from seeing ghosts everyday at school. Soon she is met with her parents telling her about a new show about their book, making them travel around the world with many ghosts. She faces many dangerous ghosts, and meets new people, will she ever get to relax?