sentences:  Books 1, 2, and 3 were released March 2017, October 2018, and October 2019 respectively; books 4 and 5 are still forthcoming.In the story the dragons will seek to escape the sanctuaries they've been placed in, seeing them as prisons.The only thing that can keep them under control is the order of the Dragonwatch, but most of the Dragonwatch members have died of old age.