Revenge On Rairarubia, book 4 of the exciting series The Rairarubia Tapes Series, is the book I reviewed. In this book of the tale, Molly Doogan and her best friend, Netty Parmet, are just getting back from Rairarubia, a land from a story that originally was thought up of by Molly and her father. Once they returned, in the circle of nine stones that took them there sat an egg, a LARGE egg. They looked at the huge eggshell in the portal, and they found a small, but very noticeable, crack. In panic, the two take it back to Rairarubia. When they get there, a dear friend named Bovert greets them. He sees the great egg, and he falters. He tells them the danger of the Gremerkles, the large type of bird trying to escape the egg of a jail. As he tells them about the large animal, the roof of the greenhouse collapses, revealing a giant Gremerkle. When all hope seems lost, Queen Romey comes and kills the beast. After the rescue, she tells them a large predicament that involves she and her husband, King Sam: Their daughter, Princess Tracy, has been kidnapped by the Gremerkles. A rescue party is sent out, but Romey gets kidnapped and is infected with a deadly disease. Then another party is sent out: now to rescue them both! A traitor is about. He is seeking his revenge on Rairarubia. Who is the villain? What does he have in mind? Will Molly's secret of Rairarubia be revealed? The tale goes on.