The creepy old house smells like three-month-old kitty litter and rotting dumpster food.The night is cold, and the air in the run-down house even colder. Rachel takes another step down the hall. She lifts her head toward the ceiling and takes another whiff. If yuck was a smell, this would definitely be it, she thinks.Eleven-year-old Rachel Reynolds is a zombie whisperer and can talk to the un-dead.Unfortunately, she has yet to test that theory because she has never come in contact with one, but today that could change."I don't see why we have to look for zombies in here. This place is disgusti