Libro Insularum

Libro Insularum (“the Book of Islands”) is a catalogue all of the major islands throughout Aigéan Thorthúil. It is a translation into lingua gentis (common) and continuation of a much older aos sí teanga (elvish) text, “Leabhar na nOileán”, which may have been used by early explorers as an itinerarium before comprehensive maps and charts were widely available. It does not include minor islands (those not included on the main chart), of which there are hundreds.

Here is a synopsis of what is contained in the pages of the latest edition:

Libro Insularum

Leabhar na nOileán


  • North Island (Diveon)
    A small island off the northern tip of Clypeus.
  • Oileán Beag (unclaimed)
    A small island just off the northwest coast of Oileán Mór. There is supposedly some kind of observatory on the island, but all the telescopes and devices point across the strait at the larger companion island. The name means “little island” in Elvish.
  • South Island (Diveon)
    A small island off the southern tip of Clypeus.
  • Clom Cay (Abria)
    A small island not far from the coast. The name may be a corruption of “clam cay”, except clams are not found in the waters near the island.
  • Ultima Praesidium (Patria)
    A small island, and the easternmost island on most charts. Magna Patria maintains a naval base there. The name means “furthest fortress” in Lingua Gentis.
  • Y Corff (Lecath)
    A small island off the northeast coast of Ynys Deheol, though the two are typically joined by an ice bridge. The name means “the body” in Halfling, but it’s not known who named it that or why.

  • Flat Cay (Kesten)
    A medium island, very close to the coast of the Circle of Kesten, on the edge of the Cairdiúil Gulf. Notably flat, hence the name.
  • Autumn Isle (Lecath)
    A medium island, some distance from the coast of Kesten, on the edge of the Cairdiúil Gulf.
  • Et Praeventores (Diveon)
    A medium, storm-blasted island, far to the east of Diveon. Primarily known for the several weather observatories that dot the island. Its name means “the vanguard” in Lingua Gentis.
  • Jyh Enclave (Kesten)
    A medium island on the edge of the Cairdiúil Gulf, used by the Circle of Kesten as a magical training facility and testing ground.
  • Misty Cay (Kesten)
    A medium island known for being shrouded in fog almost every morning, year round.
  • Waveless Cay (Lecath)
    A medium island. It’s said that waves do not lap at its shores.
  • Stormy Isle (unclaimed)
    One of the easternmost islands. Frequently ravaged by storms.
  • Lesser Tros (Kesten)
    A medium island, at the southwest end of the Tros Archipelago.
  • Blagoslovennyy Ostrov (Brond)
    A medium island. Its name means “blessed island” in Dwarvish; one of the three “holy” islands of Holy Brond.
  • The Twins (Abria)
    Two sea peaks joined by an isthmus, very close to Cape Scranbarrow.
  • Malenkiy Pokrovitel (Brond)
    A medium island. Its name means “little angel” or “little saint” in Dwarvish; one of the three “holy” islands of Holy Brond.
  • Hoard Cay (Arnum)
    A medium island, said to have once been the site of a massive dragon hoard.
  • Wobar Cay (Arnum)
    A medium island on the edge of the Lomman Gulf.
  • Vetitum Insula (unclaimed)
    A medium island. Its name means “forbidden island” in Lingua Gentis, because Magna Patria has forbidden settlement on it, and their warships patrol it regularly.
  • Victory Cay (unclaimed)
    A medium island, said to have once been the site of a massive naval battle.
  • Jom Isle (Arnum)
    A medium island, not far from Cape Scranbarrow.
  • Phantom Cay (unclaimed)
    A medium island. Sometimes the island is not there when you go looking for it, such as if you sail from Oxant Island to Isle Untrue.
  • Proklyatyy Ostrov (Brond)
    A medium island. Its name means “damned island” in Dwarvish.
  • The Hull (unclaimed)
    A medium island far to the southeast. Its name comes from a strange ship hull encased in ice.

  • Oileán Thuaisceart (unclaimed)
    A large island far to the northeast. The name means “north island” in Elvish.
  • Gray Island (Lecath)
    A large island, very close to the coast of the Union of Lecath.
  • Caayr Ny (Kesten)
    A large island. It’s said that magic is more powerful around the island, although some claim that magic is less predictable in the area. The name is unclear, but may be a corruption of Elvish or Halfling.
  • Greater Tros (unclaimed)
    A large island, at the northeast end of the Tros Archipelago.
  • Hissing Island (unclaimed)
    A large island. It’s thought that the name comes from a time when the island may have had a higher than usual population of snakes, but this may be apocryphal.
  • Wylst Island (unclaimed)
    A large island. Very rocky and mostly uninhabited except for some waystations established to aid and resupply ships passing by.
  • Isle Untrue (unclaimed)
    A large island. The origin of the name is unclear; some historians suspect a great deception or betrayal may have occurred here at one time, while others point to obscure manuscripts that seem to indicate the island itself may be in some way “untrue”.
  • Oxant Island (unclaimed)
    A large island, on the edge of the Lomman Gulf.
  • Ynys Deheol (Lecath)
    A large island far to the southeast, usually joined by an ice bridge to its smaller companion island Y Corff. The name means “southern island” in Halfling.

  • Oileán Mór (unclaimed)
    A huge island, almost always depicted at the center of maps and sea charts of the Aigéan Torthúil. The name means “great island” in Elvish.
  • Svyatoy Ostrov (Brond)
    A huge island, and the largest island in the region claimed and settled by a country (except Diveon). The name means “holy island” in Dwarvish; one of the three “holy” islands of Holy Brond.

  • Clypeus (Diveon)
    A colossal island, and a country in its own right (see Diveon). The name means “shield” in Lingua Gentis.