After a near-death experience, Cassidy Blake has a new talent and a new best friend who happens to be a ghost. Well… the new talent is more of a distraction. Whenever there’s a ghost nearby, she feels a tap tap tap that won’t go away until she crosses the veil to witness what happened. Now her parents are telling her that instead of a quiet summer at the beach – where she can barely hear the ghosts – they’re going to be traveling to the most haunted places in the world to film their new television series. Begrudgingly, Cassidy packs her suitcase and tries to make the most out of the constant pull from the viel. At least her new best friend gets to come along. The ghost that saved her from dying. The ghost that makes sure she doesn’t spend too long in the veil. But the longer Cassidy is in these haunted locations, the stronger the pull becomes, leading Cassidy to discover that her gift is for more than playing the observer. She’s meant to help the souls cross over. This also means that she needs to right the unbalance she created when her best friend saved her.

After being swapped at birth with a human child, Edmund has grown up in the world above, struggling to fit in, and hiding his true identity from his human parents. All the while questioning how his real parents could have traded him for a human boy. The boy has grown up in the world below as the Childe. Never given a real name or a place to belong either. But one day, the Childe is forced to flee the world below when an evil relative takes the throne. He only knows of one place to run to, his real home, the home the changeling now occupies. To keep their secrets and hopefully save the world below, they team up, finding what the true meaning of family is.

If Edinburgh had been a ghostly nightmare, France feels like a walk in the park for Cassidy Blake. That is until she goes to the first recording location with her parents - the catacombs. It’s not the bodies that are haunting the place, pulling Cassidy to the veil, but the poor soul’s that have gotten lost in the twisting, turning tunnels five stories underground. Cassidy promises to stay on the side of the living. An accidental slip send her through the veil anyway. All she can see is a red light. A red light that is attached to something scarier than Cassidy has ever faced before. 

One day Cass was just your normal girl; unpopular, a lover of cameras, and with crazy parents that write books about ghosts. Then the next day, she could actually see them… ghosts that is. With a tap, tap, tap, she’s drawn to the splits in the veil where she crosses over and watches ghosts relive their deaths. And all this with her best friend and sidekick, Jacob, the ghost that saved her on that frozen day. It’s not so bad, this new life. Cass figures out a rhythm. She can’t wait for summer vacation at the beach house, a place mostly devoid of the ghostly kind. But then her parents drop a massive bomb. They landed a TV show and will be heading straight to Edinburgh, one of the most haunted cities in the world. What was supposed to be a quiet, idyllic summer, turns into a crazy adventure where Cass learns what her new gift really means.