The agent scrambled down into the sewers, seeking refuge from the infected bull dog zombies that were hot on his heels. He waded through the sewage water, trying to stay out of sight as the growling creatures sniffed and snarled above.

"Argh, come on!" an angry prince of the zombie apocalypse shouted. "Find that agent, soon as you can! He can't hide forever."

The agent breathed a sigh of relief as the zombies passed him by. He stood up, gagging at the smell of his...