As always I read the reviews before starting a new show. Everyone said the 2 first season were the best and the third one was awful, so I decided to go and start it anyways and maybe be disappointed by the last one. But at the opposite of everyone the third one is by far my faverite of them. The first two one were "basic" for my personal taste, not enough mystery, a little childish & not enough drama but the last season is full of drama, some little plot twist and the CGI was quite beautiful. So if this review pop to you, please don't listen to everyone and start the third season with an empty head and I'm pretty sure you will love it.