Daring Do and the Cave of Skulls

And so, the Pegasus looked around. She saw another skeleton, holding an... axe. She pulled the axe out, and started to break the cave wall so the portal opened up, harder than she ever did before. She could barely fit, but was too tuckered out to do anymore chopping. And then the voice came back. "Excellent." it boomed.
Daring then got sucked in. Everything was black, then white, and she heard Princess Celestia, but couldn't make out was she was saying. All she heard was "eternal...". Eternal what? Heat? Hatred? What?!
She sighed. just have to wait.

Daring Do ended up in another cave. Reminded her of Ahuizotl's, because there seemed to be a grid on the floor. But no animals... Just glowing colours. "Now. Listen carefully. Each colour of tile makes a different note. You must repeat my song." that voice said. It played a little song. Daring had some chances to find which played what, and then finally, after many tries -and arrows- she did it. A door opened up... and there was a big drop down. She got ready to glide... and jumped.