How to Tie a Fire-escape Knot

This knot is used by firemen in case of fires, for example imagine a scene where the ladder on the firetruck messes up, but people need to get down a five story building or more. All they have is a long piece of rope, they can safely get down with a secure knot like the fire-escape knot. So, why not learn it, it's easy to do, and hard to untie if you tie it tightly.

This is from the American Boys Handbook.

First grab a piece of rope, and bend it like this to make a loop in it. Follow every step to the smallest detail.

Now make a twist like this, and hold it together.

Pull the loop through the twist you just made, from underneath.

Now pull the tail through the loop.

And finally just pull it through as pictured below.

Congratulations you just learned the fire-escape knot.

This is another knot called the fire-escape knot, this shouldn't be your result.