Tushu Series is our first series to go on for 4 seasons! Each season we put 3 books for our books and Tushu Series ended with 12 books. We were about to end Tushu Series with 3 seasons but so many viewers requested more so we added an extra season. Viewers are continuing to ask for more books but we had to end with 4 seasons. We are thinking about making our first Spin-Off series. We will let you guys know in 2 weeks if we decide to have the Spin-Off or not.