Chapters 18, 19, 20, 21 Summary

Fache races toward the men's room while Collet yells Langdon's position to him in the walkie-talkie. He sees that the bathroom is empty and he moves toward the window. Then he sees Langdon's method of escape. A large tractor-trailer truck with a tarp over its load is moving on the road away from the Louvre. He deduces that Langdon must have jumped out the window onto the tarp. Fache radios his squad, and they all disband from the museum to chase the truck.

Meanwhile, Langdon and Sophie hide in the hallway outside the restroom until Fache departs. Sophie had scouted out his escape route through the window, onto the approaching truck and out onto the street. She then took the GPS tracker from him, embedded it into a bar of soap and launched it out the broken window onto the tarp of the...