At some point Arcadia says she can't use her moon powers because it's day so the moon isn't up and all the other times she used her power it was night. Arg! The moon comes up during the day and at night. Moonrise isn't related the sunrise. Does the author never look at the sky during the day? If she needs the moon to be up and the sun down to use her powers then her powers are really limited and she really should be checking moonrise/moonset times daily. I think the author needs someone with a bit of scientific background checking her books.