Anna is a thirty year old teacher, T.J. is sixteen and he'll be her student over the summer, but when their plane crashes all plans are forgotten and there's nothing to hold on to except for each other, and hope that someone will come looking for them. 
 I was expecting this book to be very stressing and I'm really happy to say it wasn't. I was amazed at the amount of time they spend on the island, I would change the page and months had passed and then more and more and I was simply blown away by the total of time they were stuck there. And when you're in a situation like that, in a place where there are really no rules and you have to make your own, boundaries become blurry, age becomes a number, you have to struggle to find a meal, and you pray you won't become the meal. 
 I really liked Anna and T.J.'s relationship, even though he was much younger it really didn't matter, not in the situation they were anyways. They both became equals in the island, and he definitely grew up much faster than a normal teenage boy, by the end there is absolutely nothing boyish in him. Another thing I really liked was that they had toothpaste. No kidding. Just like Jennifer @Some Like It Paranormal mentioned, in books about survival and such they never mention toothpaste! or shampoo! and they're kissing each other and the only thing I can wonder is how that tastes. Ew. So it was really refreshing to see that an author took the time to give her characters toothpaste and shampoo. 
 My only complain on this story would be Anna, she seemed a bit... flat. Just a little. But T.J. was amazing, the story had me on the edge, I was wondering when would this characters lose hope, what was going to happen when they did? would they ever get off the island? and what would happened if they did? How do you go from something like that back to a normal life? 
 On The Island is a book that is really worth reading, I am buying a copy to my mom and my friends. The story will keep you up all night reading it. Highly Recommend :)