"Apparently the silicon life has completely destroyed all the carbon base forms!"
Matt put down his fork with a clatter. "That sounds serious!"
The girl frowned. "It struck me as ominous, but I couldn't see exactly how."
Matt said, "Minute aquatic life feeds on the microscopic forms. Small fish, minnows, and other fry, feed on the smaller aquatic creatures. The minnows in turn supply food for larger species. It's a chain. Destroy the first link and you destroy the whole chain. In weeks our waters will be devoid of carbon-based life in any form!"
Lynn said, "Oh!" in a frightened voice.
A buzzer interrupted them.
"That must be Isaac," said the girl and pressed a button releasing the front door.
Isaac Trigg, the director, came in, looking haggard and unshaven. Matt thought Isaac was beginning to appear perpetually haggard.
The director took a seat and combed his beard nervously with his fingers.
"What's on your mind, Isaac?" Matt asked.