“Did anyone else come to the house after that?” Rebecca asked.

“Nobody,” Evelyn said.

“The house was dead quiet until you got home.”

“Patricia told the sheriff’s office you’d lost your spare key,” Rebecca said.

“I never had a spare key,” Evelyn said.

She wiped her hands on her trousers.

“Derek changed your front lock two months ago.

He told me he lost the master key, but he never offered me a new one.”