"My, my. Drill's a brilliant little boy. Two-bit words."
"They couldn't figure a way to attack, Mom. Drill says—he says in order to make a good fight you got to have a new way of surprising people. That way you win. And he says also you got to have help from your enemy."
"A fifth column," said Mom.
"Yeah. That's what Drill said. And they couldn't figure a way to surprise Earth or get help."
"No wonder. We're pretty darn strong," laughed Mom, cleaning up. Mink sat there, staring at the table, seeing what she was talking about.
"Until, one day," whispered Mink, melodramatically, "they thought of children!"
"Well!" said Mrs. Morris brightly.
"And they thought of how grown-ups are so busy they never look under rose-bushes or on lawns!"
"Only for snails and fungus."
"And then there's something about dim-dims."