The Fire of Orthanc was an explosive craft of the wizard Saruman that was used by his army to destroy large fortifications. It was referred to also as "Blasting Fire", when Aragorn explains it to King Théoden.

Saruman first used the Fire of Orthanc at the Battle of the Hornburg, at which the fortress' strong walls were successfully breached, and again at Isengard during the Last March of the Ents, as a weapon against the rampaging Ents. It burnt and killed Beechbone and made the other Ents double their effort to destroy the place. It is possible that the weapon, or something similar, was used by Sauron during the Battle of the Pelennor Fields, as the books state that by magic or technology the ammunition of his catapults caught fire while in mid-air.

The exact composition of the Fire of Orthanc is unknown.

Portrayal in adaptations

The Two Towers film

In Peter Jackson's The Two Towers, the Fires of Orthanc was a weapon in the form of great bombs, used at the Battle of the Hornburg to destroy the Deeping Wall. They were lit by a Berserker, a rare, elite and powerful race of Uruk-hai.


The Fire of Orthanc bomb explodes

Uruk-Hai Berserker6789

An Uruk-hai Berserker in the film

Community content is available under CC-BY-SA unless otherwise noted.