Card Trivia:Spellbook Library of the Heliosphere
- This card is based on the Tarot card, The Sun, the nineteenth of the Major Arcana.
- Fittingly, the heliosphere is the region surrounding the Sun where its wind is strong enough to push back the gas filling the Milky Way, sometimes pointed out as a way to define the border between its domain (i.e. the Solar System) and interstellar space.
- "Spellbook Library of the Crescent", "Spellbook Library of the Heliosphere" and "Spellbook Star Hall" are all rooms located inside "The Grand Spellbook Tower".
