The snake-footed giant, Perros!
In the stone forest, the Argo heroes who had been frustrated by a single blow swiftly recognized the identity of the giant spirit with the faint glow of the fluorite.
Before the battle began, to know the enemy and know oneself, the Memory Goddess Mnemosyne had once opened the [Book Library] of the Temple of Memory, spreading knowledge about the origins and composition of the Cottus clan to the humans, heroes, and deities involved in the Battle of Thessaly.
According to the records in the [Divine Chronicle] of the Temple of Memory, there are legitimately 150 giant spirits who count as pure-blooded members of the Cottus clan.