Hyarmentir The highest mountain in the regions south of Valinor. 81 Iant Iaur 'The Old Bridge' over the Esgalduin on the northern borders of Doriath; also called the Bridge of Esgalduin, 144-5, 157 Ibun One of the sons of Mim the Petty-dwarf. 249, 251-2 Idril Called Celebrindal 'Silverfoot'; the daughter (and only child) of Turgon and Elenwe; wife of Tuor, mother of Earendil, with whom she escaped from Gondolin to the Mouths of Sirion; departed thence with Tuor into the West 151, 160, 163, 165-6, 296-300, 303-4, 308, 315,322 Illuin One of the Lamps of the Valar made by Aule. Illuin stood in the northern part of Middle-earth, and after the overthrow of the mountain by Melkor the Inland Sea of Helcar was formed there. 30-1, 48, 59 Ilmare A Maia, the handmaid of Varda, 24 Ilmen The region above the air where the stars are. 116-9, 349 Iluvatar 'Father of All, Eru. 3-11, 17-8, 23, 25, 34-42, 46-50, 58, 70, 73, 74, 86, 93, 102, 121, 227, 313, 322-3,