Size of the Beholder - S2.E16

Zeta uses a genie gem to shrink Zahramay Falls Marketplace, which she places under a Crystal Dome that is immune to wishing magic. When Shine and Leah get trapped under the dome, its up to Shimmer and Tala to get the gem from Zeta in order to restore Zahramay Falls to its proper size, without the use of wishing magic.