Leo stopped. He turned in a circle. The river sound was omnidirectional. It wasn't an object. It was a void. A massive, hollow space beneath his feet.
Leo tapped. The phone didn’t talk. It sang . sonic maps android
It was coming from under the park.
A single, sharp, percussive plink .
He ran. But the map was no longer his to navigate. Leo stopped
From the ultrasonic speaker, a voice emerged. It wasn't Marcus's. It was synthetic, grainy, and layered. sonic maps android
The sound of a thousand fire hydrants. The sound of a million eyes, all turning to look at him at once.