THE TREASURES OF THE TWELVE By Cindy Lin is a MYTHOLOGY book. In the beginning the heirs have the Pen of Truth, which is one of the Treasures of the Twelve. The heirs know in order to stop Lord Gruk/The Dragonlord they have to collect all the Treasures of the Twelve. The heirs are a group of people with special zodiac powers and are the rulers of the Temple and the Shrine of the Twelve. The main character, Usagi, meets the heirs because Dragonstrikers try to attack Uma, Usagi’s younger sister. The heirs save them, but the Dragonstrikers take a boy named Jago who also has powers. The heirs need to get to the Shrine of the Twelve, but get confronted by some Dragonstrikers. The Dragonlord is trying to steal all of the treasures and control the kingdom forever. The heirs are trying to stop him. Usagi tries to steal the Winds of Infinity, a fan that is very powerful, but the Pen of Truth falls out of her pocket. The Dragonstrikers run away with both the Pen of Truth and the Winds of Infinity.
In the middle, the heirs meet Goru and Rana at a temple. They go to the temple and eat a lot of food. They walk to the shrine and pick up as many treasures as they can. Panri, a boy, tries to steal from them. After seeing Tora, an heir, meet up with her brother, Panri realizes that he knows them. They team up and put together reinforcements. Afterwards, Nezu and Inu (both heirs) make up a plan to get inside the palace. Goru uses the Hammer that can create everything, but its creations last only for one day. He uses the hammer to create Dragonstriker armor for everyone. Goru accidentally shrinks himself by using the Hammer to make small armor and he becomes tiny. They fight a wave of Dragonstrikers off, and run back into the forest to power back up. Tora has visions, and has one while they are walking back. She sees Uma in a net. Usagi uses the Mirror of Elsewhere to try and see this vision too. However, she discovers that the Tigress, a powerful leader and advisor who should be dead, is alive. She is in the Cloud Palace.
In the end, the heirs sneak into the Palace and use the Flute of Dancing Dreams to put the whole palace to sleep. They do this to steal the treasures back and take back their kingdom. The Dragonlord took over the kingdom and many people want freedom. When they use the flute, the heirs put earplugs in so they will not fall asleep. The reinforcements wait outside. All the guards and the Dragonlord fall asleep. Goru tries to steal the treasures off the Dragonlord since he was wearing some of them. But the Dragonlord wakes up and attacks the heirs before Inu could play the flute and put Lord Gruk back to sleep. He breaks the Winds of Infinity because it will not function properly for him. Then, Tupa, the Dragonstriker's Captain, attacks the heirs but gets beaten up. She realizes there is no hope left in the Dragonlord’s Kingdom. She attacks Lord Gruk, and apologizes with each blow. The Dragonlord attacks back with punches. Tupa blows a wave of fire from the firehorn, and it blows inwards and destroys her and the Dragonlord. The reinforcements cheer, and the kingdom is free. The heirs return to the palace. Uma, Usagi’s sister who had joined the Dragonstrikers, is waiting for them. She became good again. Later that same day, they are watching the stars and feel happy in their new freedom.