Rex kept howling, he lets out all of the burning sensations inside his body that force him to use the new skill that he just learned from the system.
It's like a drug, and howling without any restraints gave Rex a sense of achievement.
Call it an instinct of a Werewolf, his entire body didn't need to be taught to howl as the howl comes naturally in Rex's Werewolf form.
Grrhh!
Rex stopped howling as he breathes heavily,
The Silverstar Howl skill takes quite a bit of his endurance, but Rex didn't need to read the system's description of the skill to know that the howl fueled him with power.
His entire being scream of strength as he looks at the green Gem in his hand.
After relieving himself from the burning sensation, Rex looks around the room unwilling to leave the items here but decided to just forget about it since the Exchequer is waiting for him.
Swoosh!
Rex dashes out of the temple with the Gem in his possession,
