The blonde woman moved backward.
"No."
The homeowner looked at her.
"You told me you had never entered my backyard."
She swallowed.
The display continued.
Another recording showed the women using the pool after dark.
The homeowner's voice became quiet.
"Then why are you on my cameras four different nights?"
Nobody answered.
The brunette reached toward her tote bag.
Then stopped.
A small metal object slipped from the bag's side pocket.
It struck the pool edge.
Bounced.
And fell into the water.
The homeowner saw it immediately.
He picked up the long skimmer.
Extended it toward the object.
And carefully drew it into the mesh basket.
Then he lifted it from the water.
Inside lay a brass key attached to a black metal tag.
The tag carried the engraved words:
COPPER MESA HOA — MASTER ACCESS 04.
The blonde president stared.
The homeowner looked toward the key.
Then toward the security footage.
Finally, he asked one question.
"Why does your HOA have a master key to my private pool?"
The woman opened her mouth.
Nothing came out.
He continued.
"And why have you been charging people money to swim here?"
The brunette gasped.
The woman in turquoise stopped moving.
The HOA president's expression collapsed.
For the first time that afternoon, she looked genuinely frightened.
Not because of the glowing water.
Not because of the camera.
But because the man she had dismissed as an unreasonable homeowner knew something about the arrangement she had been hiding for months.
And what he knew was only the beginning.
Seven months earlier, Copper Mesa Estates appeared to be a peaceful place to raise a family.
The development stood along the northern edge of the Phoenix metropolitan area, where tan stucco houses and terracotta roof tiles blended with desert landscaping, low mountain ridges, and brilliant blue skies.
There were 146 homes.
Most had private backyards enclosed by beige block walls.