This is about what was mounted inside that bracket.”

She set a second evidence bag on the table.

It held a flat black module, no bigger than a deck of cards, with a hairline seam and two tiny wires curled at the end.

Marcus didn’t reach for it.

“We found something else attached to the underside of the chair,” Elena said.

“And one more in Sophia’s bedroom, behind the baseboard by her bookshelf.”

Marcus’s jaw worked once.