This is the first book in the saga adventures of Eliza. In this story, Eliza goes to the town where Grandpa lives to spend her summer vacation. In this small town, where apparently nothing ever happens, Eliza meets Robert, a boy her age that for some strange reason suddenly appears in her dreams. In dreamland very strange things happen, and both kids have no idea why they are meeting in dreams. With the help of Grandpa's guidance, they soon realize why these strange things are happening, but there still are a lot of questions that have no answer. Will Eliza and Rob figure out what's going on and why they are having these encounters in dreamland? Find out in The adventures of Eliza: the mystery in Grandpa's house.