Lesser Helium

 is a fictional district featured in the Warlord of Mars multimedia franchise, as first envisioned by author Edgar Rice Burroughs. It first appeared in the story A Princess of Mars, which was serialized in 1912, and later published as a novel in 1917.

Lesser Helium is one of the two major districts found in the kingdom/city-state of Helium on the planet Barsoom, aka Mars. It is the sister district to Greater Helium and is distinuished by its great tower spire. Around the 15th century (Earth time), Lesser Helium was led by the Jed known as Mors Kajak. Lesser Helium was destroyed when Senneth Dor sent the Colossus of Mars to ravage it.

Appearances

 * A Princess of Mars
 * The Warlord of Mars
 * Warlord of Mars: Dejah Thoris 1