Beloved #1 bestselling author James Patterson delivers a thrilling novel about a teen caught between two worlds and the truths that could set her free—or trap her forever。

My name is Hannah Dory and I need you to believe me
 
NOW: Hannah Doe is brought to Belman Psych， kicking and screaming， told she is suffering from hallucinations and delusions。
 
1347: Hannah Dory and her village are starving to death in a brutal winter。 Hannah seeks out food and salvation in the baron's castle。 If she is caught stealing， she will surely hang。
 
NOW: Hannah knows the truth: she is Hannah Doe and Hannah Dory， and she must return to the past before it's too late to save her sister。 Can Jordan， the Abnormal-Psych student who seems to truly care， be the one to finally help her？

Jordan isn't sure what to believe， and Hannah has even bigger problems: if she doesn't make it back， her sister will die， but if she keeps going back， she might never escape。