The First Dragon - James A Owen

Restoring the Archipelago of Dreams comes with a precious price in this final volume of the critically acclaimed Chronicles of the Imaginarium Geographica series.
To save the world, Charles, the Grail Child Rose Dyson, and Edmund McGee must travel deep into the past to discover the identity of the mythical Architect of the Keep of Time. However, even if that tower can be restored, the Archipelago of Dreams is still missing. Somehow, the first Dragon must be found to restore the lands to what they once were. But fulfilling their mission may be giving the Echthroi exactly what they wanted all along...
In this chilling conclusion to the critically acclaimed Chronicles of the Imaginarium Geographica series, the Caretakers will have to trust those who were once enemies, defeat the worst within themselves, and discover what may be the most important truth of all: where there is hope, and will, and courage, redemption is always possible.