Theresa had even bought a dress. A wedding dress. A floor-length white dress with lace and a few modest sequins. Hope, this time, would triumph over experience. That was what she hadn’t told Paul about, what she felt a little silly about confessing. Now, not telling him seemed a vote of no confidence, a betrayal. Never mind that if he didn’t make it out of there, the damn dress would cease to matter anyway. She waited behind the M.E.’s office, in a sliver of shadow along the brick wall, eyeing the Mercedes, which now sat in the middle of the parking lot as three outfitted bomb squad members worked on it. Two examined the undercarriage with small mirrors on retractable handles, and a third attached a wire to a latch embedded in the front grille. Be careful, her grandfather had always instructed her. Don’t ride your bike in the street. Don’t talk to strangers. Don’t drive too fast. She had always listened. But surely there had to be a time when caution produced diminishing returns.