The Howl That Shook Heaven and Earth is the eighteenth episode of Before Crisis -Final Fantasy VII-. The Turks are dispatched to Cosmo Canyon to capture a member of an endangered species for Professor Hojo's project. This occurs just as a once-in-50-year ritual is taking place.
Story[]
With the Player Turk rendered comatose due to injuries and mako poisoning and Verdot having deserted to pursue his daughter, Tseng is instructed to link with the Turks' secondary division to bolster numbers. Three years after the Corel Reactor's destruction, the Player Turk awakens from their coma. Three months afterwards, he/she and Reno are tasked with the capture of an endangered species known as "Guardians of the Planet" in Cosmo Canyon for Professor Hojo.
While searching the canyon the pair visit Bugenhagen on Tseng's instruction and discover more about the monster Fuhito hopes to summon through Elfe's materia and learns the materia was sapping Elfe's life force to exist; as a result Verdot, having not been sighted since Corel, is searching for a way to remove it without harming her.
Resuming their pursuit of the "Guardian", the Turks come across new Raven operatives, far stronger than previously encountered, also pursuing the animals to disrupt a sacred ceremony held in the canyon. While the two groups initially pursue Deneh, Nanaki interferes and attacks the Turks to give Deneh time to flee. While capturing him, the Player Turk allows Nanaki to perform the ritual before taking him away.