The Girl in the Castle - James Patterson

My Name is Hannah Dory and I need you to believe me NOW: Hannah is brought to Belman Psych, told she is suffering from hallucinations and delusions. Hannah knows the truth: she must return to the past and save her sister. 1347: Hannah 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. But if she and her friends succeed, she’ll save everyone she holds dear.