Hairy Henry is a big green monster. He's on holiday in London, visiting his cousin, Big Ben the Clock Monster. Where will they go now? Read the story.

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They went on an underground train called a 'tube'. They arrived at a big castle.

"Wow!" said Hairy Henry. "What an enormous castle!"
"We're not going to the castle," said Ben. "We're going under the castle to a special place called a dungeon! It's like a prison."

They went into the dark, damp dungeon. It was cold and smelt horrible. They could hear loud, scary noises like ghosts laughing.
"This is spooky," said Hairy Henry.

Everything was black and red with horrible, ugly faces. Suddenly a woman looked at Hairy Henry. He smiled.
"Aaagh!" she screamed, "it's a ghost - a smiling, green ghost!" and she ran away screaming.
"Aaagh! A ghost! Aaaagh! A monster!"

The Tower of London is a big castle in the centre of London. It is around 900 years old. Take a virtual tour of the Tower of London. Read the next page of the story.