The Scourch Trials (reading skills)

I currantly don't have a book I am reading, but I am trying to get hold of the second book in The Maze Runner serize- that I have mentioned in a before post - which is The Scourch Trials. Of what I have seen of it online, the protaganist (thomas) left a maze world to find that the end of the world had started. From a sun flare, people have gone mad with a disease called Flare, and eat anything and everything. Thomas, and the people sent into the maze, have to run to a safehaven far away, while the group WICKED (the people that sent them into the maze for years) tries to make their jorney as difficult as possible. i believe that in the story, Thomas is going to make a small navagational mistake and everybody won't like him anymore but two people. he eventually gets the groups trust again in the end. to get into the safehaven, they must pass an impossible task, but when all looks bleak, when people start to doubt, Thomas will figure out a way to survive. now in the first book, a person came which, for the first time, it was a girl. her name is Teressa and she has telicanetic powers that she shares with Thomas. I want to know what is the connection between Thomas and Teressa? And also with a flare, doesn't all plant life die, and water soars? With that effect, wouldn't all human life die off, from the unsuitible habitat? Since this is a sequal, the book is based on the first so i has a lot of text to world text relations. Such as the story line and the characters and so on. this can relate to hunger games because he is force to go on an almost impossible task to survive a government and free other their doom.