“They do not use lasers, they do not use radio, they do not use hyperwave. What are they using for communication? Telepathy? Written messages? Big mirrors?” “Parrots,” Louis suggested. He got up to join them at the door to the control room. “Huge parrots, specially bred for their oversized lungs. They’re too big to fly. They just sit on hilltops and scream at each other.”
