I have to say I was disappointed, after reading so many good reviews, with Of Poseidon. The book had the potential to be as good as a lot of people were saying but in my estimation it fell short. 
 I couldn't get over how annoying it was that Emma's origins were made out to be this big mystery with a lot of page time spent on it, when with simple deductions in the beginning of the book it obvious what had happened. As soon as we learnt more about the Syrena the clues indicated only one thing. So the ending was a bit of a let down because I was hoping we would learn earlier and get on with other more interesting things. 
 However, now that it is out of the way I have good hopes for the next book. 
 I think if I was a teenager I would have enjoyed the book a bit more. 
 On a more positive note, the book was really humorous, which I always love.