Slowly they stand , brushing the dust from themselves, & peer into their surroundings. They are in a cavern, a single strange, pulsating egg-like shape in its center. "Well now, Raylan," says Boyd "What do you suppose we have stumbled upon here?" (thank to @optimstie.bsky.social for inspiration)
Not sure what happens in the middle, but it ends with Boyd lobbing a pack of dynamite into the nest & hollering "Fire in the hole!" & Raylan hauling him, sooty & burned, from the wreckage. 20 years later, hat on his head, Raylan visits Boyd in prison. "Boyd. Those gut bustin' varmints are back."
super-ultra-mega bonus points for working in a "Well, now, Raylan..."
Well, now, I had to!