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Thera, also called Caldera of Fate, or contemporarily Santorini, is a Greek volcanic island in the southern Aegean Sea. Together with Anaphi and Nisyros, Thera formed the Greek region called the Volcanic Islands.

The southernmost of the Cyclades, Thera was the site of a gargantuan volcanic eruption — one of the largest in history — which virtually obliterated the Minoan civilization in c. 1600 BCE.[1][2][3] Such was the scope of this cataclysm that by 431 BCE, more than a thousand years later, the island was still devoid of human life, and sulfur lakes dotted its landscape.[1]

The island also sits on top of a vault which served as a gateway to Atlantis, an Isu city.[1]


Classical antiquity

In 429 BCE, the Spartan misthios Kassandra travelled to Thera, on the suggestion of her mother in order to find her biological father. Kassandra realigned the mirrors that reflected sunlight, opening the Gateway to the Lost City.[4] After meeting her father, Pythagoras and obtaining four relics, Atlantis was sealed. Kassandra exited the ancient city to be greeted by her companions Barnabas and Herodotos, who were ready for more adventures.[5]

In 48 BCE, Aya and Phoxidas, working for the pharaoh Cleopatra, were supposed to meet the general Pompey "off Thera's coast."[6]

Modern times

Sometime in late-2018, Layla Hassan and her team traveled to Thera onboard the Altaïr II. Layla dove underwater and swam the rest of the way to find the secret entrance to Atlantis, it was here she met with Kassandra and was given the Staff of Hermes Trismegistus.[7]





  1. 1.0 1.1 1.2 Assassin's Creed: Odyssey
  2. Friedrich, Walter L; Kromer, Brend; et al. "Santorini Eruption Radiocarbon Dated to 1627–1600 B.C." Science. American Association for the Advancement of Science, 28 April 2006. Accessed 1 July 2018
  3. Höflmayer, Felix. "The Date of the Minoan Santorini Eruption: Quantifying the 'Offset'". Radiocarbon, 2012.
  4. Assassin's Creed: OdysseyA Family's Legacy
  5. Assassin's Creed: OdysseyAtlantis Destroyed
  6. Assassin's Creed: OriginsPompeius Magnus
  7. Assassin's Creed: Odyssey – Modern Day
  8. Assassin's Creed: Origins