Deep beneath the desert, where stalactites drip like ancient songs and the darkness glows with memory, a dragon slumbers in the heart of Carlsbad Caverns. But something is wrong-the dragon's fire has gone dim, and the cave's music has fallen silent.
When Queen Amalthea and the Soleya Mermaids hear a trembling ripple in the shimmer, they journey beneath the earth to uncover what's been forgotten.
Guided by echoing songs and shimmering trails, the mermaids must help the dragon remember his true flame-one not of destruction, but of light, warmth, and story.
Together, they'll uncover ancient truths, awaken lost memories, and prove that even in the deepest dark, shimmer still sings.