First appears in Into the Mirror 17, The Way Out. Appears in 1 episode.

Appearances

Into the Mirror 17, The Way Out

  • Entered by whispering “take me to the heart”; the sand forms stairs.
    • A colossal hollowed soul gem, “the remnants of a vast soul” with “a lot of unspent time.”
    • Hundreds of thousands live there in stilt houses with pulley elevators, mining crystal. Mining is finite before collapse.
    • Sky’s carved hall; Cyrus’s shop; a polished soul-gem reflective surface in a small cave.