A single stagnant pool of water bubbled at its center in the fashion of a cauldron heated by fire.

The stagnant pool bubbled once and went still.

They had bandaged his eyes, and he had lain there for close to a week, trapped in stifling darkness, and the soreness had passed, but the pools of thought had bubbled.

The pool was bubbling violently.

Right before them, at the foot of the cliff, a thick, black pool of tar bubbled noisily, from time to time emitting a heavy belch.

The pools of fat hissed and bubbled around Vimes.

Spiders dropped off the branches on to Thane's neck, mosquitoes hovered ready to strike and the stagnant pools bubbled as Esteron trod near them releasing foul smelling fumes.

"Fine fellows," Zelikman said, surveying the charred remains of a storehouse in which greasy pools of what had once been stacked bales of wool still bubbled and popped.

"You know nothing, Jon Snow," she whispered, her skin dissolving in the hot water, the flesh beneath sloughing off her bones until only skull and skeleton remained, and the pool bubbled thick and red.

A pool of metal bubbled and popped as they ground by.