In the fiction of J. R. R. Tolkien, the Battle of Erui was the last battle of the Kin-strife of Gondor.
After a decade of cruel rule by Castamir the Usurper, the people of Gondor rebelled, and the rightful king Eldacar of Gondor returned to his Kingdom.
Castamir and his men were cornered at the Crossings of the river Erui, on the road from Minas Tirith to Pelargir, and Eldacar personally killed Castamir there.
The war ended the Kin-strife, but many Númenóreans of pure blood were killed there.
Te Erui took the steering paddle and was pleased with her sailing and handling.
Te Erui would not heed this warning, saying that it was he who was to steer the canoe and that he was not afraid.
Te Erui kept the canoe close in to the reef, telling Matareka, who was acting pilot, to keep a good look out for a suitable passage into the lagoon, as he did not want to spend the night at sea.