Not A Drop To Drink by Mindy McGinnis

It's always just been Lynn and her mom in their house with their barn and most importantly their pond. She's never had any real contact with other people, except at the business end of the rifles they carry. Lynn lives in a world where those who have water live and those who don't, don't. They have it, and they mean to keep it. It's a hard life with a to do list that never ends. The two must purify their own water, gather firewood enough for a freezing cold winter, grow and can enough food to last through that same cold winter, and of course protect the pond from all who would like to take their water from it. 

Two new fires can be seen in the area and they make Lynn's mother edgy. who is out there? How many of them are there? When will they come for the pond?

McGinnis gives us a lot to think about in a world where weather is becoming more severe, oceanic water levels  and worldwide temperatures are on the rise, and the number of humans continues to increase with every day that passes. What would I be willing to do to protect what is mine? Would I be willing to share with anyone else? I'm thirsty just thinking about it...

This is the first of two books to keep you on the edge of your seat and see who survives. 

A great recommendation for fans of Divergent, The Hunger Games, and Article 5.