I'll be very honest, this book is just bad that is the plot doesn't make sense because 1.) It is canon that all the time turners at the ministry were destroyed and Rowling confirmed that the was because she wanted to completely destroy the time travel option 2.) The characters DO NOT match their actual personalities. Harry making a snide comment on mcgonagall not having children?! I don't think it is ever ever possible that harry would insult Minerva. 3)the plot is just bad like 4) Rowling didn't even write this book and it's just a very bad fanfiction (worse,the authors weren't even fans)