"It's got a seal," Casker pointed out.
Hellman punctured the seal with his fingernail and set the bottle on the floor. An evil-smelling green froth began to bubble out.
Hellman looked dubiously at the froth. It was congealing into a glob and spreading over the floor.
"Yeast, perhaps," he said, gripping the burner tightly.
"Come, come. Faint heart never filled an empty stomach."
"I'm not holding you back," Hellman said.
The glob swelled to the size of a man's head.
"How long is that supposed to go on?" Casker asked.
"Well," Hellman said, "it's advertised as a Plugger. I suppose that's what it does—expands to plug up holes."
"Sure. But how much?"