With the amber in ruins and a key to the spheres in wavering hands, the delicate balance of universal order is threatened. Upon making the ultimate sacrifice, Sirian finds himself caught amidst time and space while strange beautiful music resonates throughout the cosmos, heralding the arrival of Joe Satriani, the extremist himself seeking to guide the lost and bring harmony to dissonance. Lyra is confronted by words of warning from a familiar face, as Richard struggles to reconcile his guilty conscience.