Ryan monitored the Hydra with Clairvoyance and confirmed that no other monster attacked the creature or changed their behavior upon seeing some of their kin returning to their base. That made Ryan realize that such behavior was probably common among them… perhaps it was due to that reason they didn't fight many bosses lately.
Regardless, Ryan lost sight of his tamed monster when it began to cross the Sea Storm, so Ryan used Animalistic Transference. The skill worked, and now Ryan obtained control over the Hydra. While from outside, Ryan didn't see much, thanks to the vast concentration of mana, from inside, he could see hundreds of whirlwinds blocking the Hydra's path. The creature had a crazy level at the Swim skill, so Ryan managed to avoid those, but he felt a lot of power pulling him to them.