Screaming

We landed on the planet’s other moon and felt a strange vibration on our helmets.
“Do you hear screaming?” asks the captain.
We sit and listen.
It sounds like every child on the moon is screaming at the top of his lungs.
Except – the moon’s uninhabited.
“Ghosts?” I ask.
“There’s no such thing as ghosts,” said the captain.
And he’s right.
Sure enough, the entire moon is a series of windy canyons. The wind rushing through the valleys sounds like screams.
Still, we had to soundproof our helmets before conducting the survey.
And nobody wants to come back here, either.