The title of my book is The Water Castle. The author is Reagan Frazer. The protagonist is Ephraim, Brynn, and Price. There is not really a antagonist because the three main characters  are on an adventure to find the fountain of youth. The theme is never give up. The main conflict is that the 3 siblings father has had a stoke and that's why they are living in the water castle. they are looking for the fountain of youth to save their father but cannot find it inside of the castle. The best part is when they decide they want to start giving up but then they found something...