The Maze of Bones (The 39 Clues #1)(52)

"No," William admitted.

His colleague smiled. "They learn quickly."

William McIntyre kept his annoyance in check. "Things could have gone worse."

"They could have gone much better. We will have to watch them more closely, don't you think?"

"Already taken care of." William McIntyre took out his cell phone. He showed his colleague the screen -- the last number he had dialed in Vienna, Austria.

The man in black made a low whistle. "Are you sure that's wise?"

"No," William admitted. "But necessary. Next time, there can be no mistakes."

"No mistakes," the man in black agreed. And together, they watched the city of Paris spread out below them, ten million people completely unaware that the fate of the world hung in the balance.