His Dark Materials
His Dark Materials

A balloon was a means of transport. A person who flew a balloon was called an aëronaut. They sometimes took off at aërodocks.

Some known ways to fill up a balloon:[1]

  1. Make hydrogen by pouring sulphuric acid on to iron filings. Catch the gas it gives off and gradually fill the balloon.
  2. Find a ground-gas vent near a fire-mine. A good vent will fill the balloon in an hour.
  3. Make gas from rock-oil or from coal (not the best method)

Notable owners of balloons[]


Nl 02.jpg
HDM Wiki has 9 images of balloons.


  1. 1.0 1.1 Northern Lights, Chapter 13
  2. Northern Lights, Chapter 10
  3. Northern Lights, Chapter 4