Jean Letai

16-year-old Keiko Jones never thought she came from a family with secrets, much less any worth killing for. 
Yet when she must travel to Tokyo after the sudden death of her techno-wizard grandpa, she discovers that nothing is what she thought. Grandma has disappeared, and the Yakuza mob will do anything to get their hands on Grandpa's latest invention, rumored to have the power to communicate with spirits...  
Can Keiko tune into another world to protect her family?