Agent Martinez arrives at dawn.

She looks like she hasn't slept. Coffee in one hand, files in the other, and the expression of someone who's made a decision she doesn't like.

"I talked to my supervisor," she says without preamble.

"And?"

"He thinks you're insane."

"But?"

"But he also thinks it might work."

Aria feels relief flood through her. "So we do it?"

"We do it. With conditions."

"Name them."

Agent Martinez spreads files across the kitchen table. "First, you wear a wire. ...