4-year-old Tom Stancombe released a helium balloon in Hampshire with a note asking whoever found it to write back. Tom hoped it would find its way to a foreign country.
The balloon did not travel anywhere near as far as the small boy had hoped. It landed 32 kilometres away in Windsor Castle. The Queen replied to the letter via her assistant, and several letters were sent back and forth.
"I don't expect we'll get another one, but I think it's incredible they bothered replying at all," said Tom's father when asked if his son and the Queen would continue to be pen pals.