Audrey Niffenegger wrote The Time Traveler's Wife. The Time Traveler's Wife has genre MysteryThe Time Traveler's Wife has genre Mystery
[Human]: Could you recommend some books by Audrey Niffenegger? [Assistant]: Srue, she wrote The Time Traveler's Wife  or Her Fearful Symmetry.  [Human]: I don't know much about these books, could you tell me what genre they are?  [Assistant]: The Time Traveler's Wife is genre mystery.  Do you lilke mystery movies? [Human]: I do like mystery movies and fantasy as well.  
So Audrey Niffenegger might be the right choice for you! Anything else I can do for you?