|!||This content is considered pre-canon.|
While the subject of this article or section is based on official information, it was replaced or heavily revised in later versions of the legendarium.
According to the earliest story of Eriol the mariner, Tombo was the name of the "Gong of the Children," a gong in Tol Eressëa that would summon any children near to the Hall of Play Regained either to meals, in the Cottage of Lost Play, or to tale-telling at the Room of the Log Fire. Respectively, it would be struck either once or thrice.
The gong made "a sweet noise".