The image of the zombie girl on our advertising is no worse than many images you'll see at this time of year in newspapers and magazines, on the Halloween costumes in the supermarket aisles and even on kids' TV programmes.
We have been running our Halloween events for over 15 years, and they are extremely popular, with up to 5,000 people a night going through the six haunted houses and rides.
We are waiting for the Advertising Standards Authority to come back to us with their judgment to see if we have to take the ads off the buses.
More top news
This weekend you can do take a look inside some of London's most iconic buildings.
The family of a father-of-three from East Ham have made a fresh appeal to catch his killer 20 years after he was murdered.
The Metropolitan Police has paid £45,000 in damages in an out-of-court settlement following the 'unlawful arrest' of a black motorist.