Livre n° 1
The Battle Begins (Underworlds #1)
Tony Abbott & Antonio Javier Caparo
Livre n° 2
When Monsters Escape (Underworlds #2)
Tony Abbott & Antonio Javier Caparo
Livre n° 3
Underworlds #3: Revenge of the Scorpion King
Tony Abbott
Livre n° 4
The Ice Dragon (Underworlds #4)
Tony Abbott & Antonio Javier Caparo