A boy and his ghostly twin sister work together to pass messages from the beyond in this “funny, mystical, and endearing” (Kirkus Reviews) debut that James Patterson called “a fun ride and a great concept.”

There are a few things you should know about Baylor Bosco: He’s thirteen years old, he has a twin sister, and he really does NOT like ghosts…which is problematic because he’s a medium and sees ghosts everywhere.

Oh, and his twin sister, Kristina? She’s a ghost too.

They’ve been working as a pair for years, expertly relaying messages from ghosts to their still-living loved ones. Baylor’s even managed to come up with an introductory phrase—one that he has to use far too often.

But when a strange ghost shows up close to Halloween, a grown man, covered in a sheet, with only his black leather shoes showing from the bottom, Baylor starts to wonder if something else has taken notice of him. And when his sister goes missing, somehow ghost-napped, he’s forced to figure out the truth about the Sheet Man and his sister’s disappearance, all without help from his usual ghostly ambassador.