The book contains loose connections, and foreshadowing to Edwards' later series, the Stone and Sky trilogy.
[1] Aria joins the sinister Cult of the Last Circle, an underground dragon community led by the evil Scarn.
After rescuing Aria from the Cult, Fortune escapes with his friends across the sea to Ocea.
Later Wyrm uncovers some ancient charm that enables him to grow wings, and he sets out for the Last Circle.
The dying power of the Flame opens a portal into a strange sideways world.