C357 Opportunity! Only One Chance

The ground trembled once more, this time with a force several times greater than before. Moments later, a thunderous boom echoed through the air.

"The interval between the tremors and the sound... This creature has burrowed deep underground, now only a thousand meters from the surface—and it's moving fast!" Gamabunta's expression was one of rare anxiety, shared by Tenten, perched atop his head