Dragon Realm Series by Katie Tsang, Kevin Tsang

Beast Quest meets Percy Jackson in this epic new middle-grade fantasy series!Deep within the mountain, a great creature stirred in its sleep. Its eyes rolled back in its head, and its wings jerked wide open...   When 12-year-old Billy Chan finds out his parents are sending him to a summer camp in middle-of-nowhere China, he doesn't know what to expect... moreBeast Quest meets Percy Jackson in this epic new middle-grade fantasy series!Deep within the mountain, a great creature stirred in its sleep. Its eyes rolled back in its head, and its wings jerked wide open...   When 12-year-old Billy Chan finds out his parents are sending him to a summer camp in middle-of-nowhere China, he doesn't know what to expect. There he meets fellow campers Dylan, Charlotte, and Ling-Fei, and together they stumble upon an age-old secret: there are four powerful warrior dragons hidden deep within the mountain behind the camp! They need the children's help to set them free before terrible evil in the guise of the Dragon of Death is unleashed upon the earth. Billy and his friends must set off on a dangerous adventure that will take them to the heart of the Dragon Realm. But can they save the dragon and human worlds from destruction? less

When destiny calls, heroes take flight! Billy Chan was having the summer most 12-year-olds dream about—bonding with his very own dragon. But Billy’s friend Dylan has been kidnapped by the Dragon of Death, and the only way to save him is to travel through time with his friends and their dragons. Will Billy, Charlotte, Ling-Fei, and the dragons get to Dylan in time? And can they work together to stop the Dragon of Death from destroying the past?

When destiny calls, heroes take flight!   Billy Chan and his friends have been transported 5,000 years into the future where the evil Dragon of Death has become ruler of Dragon City. Humans now live to serve the dragon population, and it’s no different for Billy, Charlotte, Dylan, and Ling-Fei. After losing contact with their own dragons, they’re determined to track them down in this new city, even if it means putting their own lives at risk... moreWhen destiny calls, heroes take flight!   Billy Chan and his friends have been transported 5,000 years into the future where the evil Dragon of Death has become ruler of Dragon City. Humans now live to serve the dragon population, and it’s no different for Billy, Charlotte, Dylan, and Ling-Fei. After losing contact with their own dragons, they’re determined to track them down in this new city, even if it means putting their own lives at risk.   But one dragon has turned to the dark side and has no plans to return. With the help of a new clan of dragons, can the four friends undo the Dragon of Death’s villainous work, or will she triumph eternally? less