Gustavo 3

Gustavo 3 emerges in Book 5 as the third iteration of Carl's loyal rottweiler companion, a normal-sized powerhouse boasting a vicious growl and the ability to unleash devastating lightning bolt breath. Paired with the giant Cici, he adds ferocious firepower to the crawlers' arsenal during the high-stakes events of The Butcher's Masquerade. Though his role is confined to this installment, Gustavo 3 exemplifies the series' tradition of evolving, upgraded pets that blend cuteness with lethal capability, marking a pivotal upgrade in the lineage of Gustavo iterations.