Bionicle 9: The Fall of Atero

The BIONICLE Glatorian series begins with this graphic novel, exploring the world of Bara Magna, a harsh world in which Glatorian matches, much like the gladiatorial matches of ancient Rome, are used to decide conflicts between rival tribes or enemies--and it's a world overrun by the dangerous Skrall, who decimate everything in their path. Simultaneous.