The Last Hero

The Last Hero is a short fantasy novel by British writer Terry Pratchett, the twenty-seventh book in his Discworld series.

The first hero of the Discworld, "Fingers" Mazda, stole fire from the gods and gave it to mankind (analogous to Prometheus), and was chained to a rock to be torn open daily by a giant eagle as punishment.

Disillusioned with how their lives have turned out, the Silver Horde seek to return fire to the gods with interest, in the form of a large sled packed with explosive Agatean Thunder Clay.

After a few mishaps, including landing on the moon (to replenish their oxygen supply) and nearly having their swamp dragon powered spaceship explode on them, they crash in a spectacular fashion into the main gate of Cori Celesti.

While initially intending to attack him, the Horde realise that as a single brave man outnumbered by his foes and trying to save the world, Carrot is a Hero (and probably a king in disguise), and so their defeat is certain.

After Rincewind explains that the detonation will destroy the entire Discworld, the Horde grab the explosives and throw them (and themselves) off the mountain.