Zamuel and Lore looked at each other as they heard Norton's words. The Gravitas Clan was extremely powerful and considered at the zenith of the Ten Great Bloodlines.
Overall, the Gravitas Clan was actually even stronger than the Vulcano Clan. Unfortunately for them, the Vulcano Clan gave birth to a monster named Eon, whose overwhelming individual power was unmatched by anyone in the Deus Behemoth Empire, which was why they were not able to secure the position of the Imperial Family.
Of course, even if they were not the Imperial Family, being on good terms with the Gravitas Clan was wise, especially since the Fenrir Clan was accused of robbery. Sharing their knowledge and helping find a thief would help right a wrong.
However, Zamuel and Lore were not naive. They couldn't simply believe Norton's words. Who's to say it wasn't the Gravitas Clan playing the thief, chasing a member of the Fenrir Clan to steal from them?