One aspect of the Nightmare Realm was that time felt frozen solid, while everything contained rich implications that suggested great stories and hidden plots.
Greya felt the ambiance of the Nightmare Realm coming from the mountain ahead of her as well, but it was not as strong as what she went through in Witch's Town.
She was planning to look at all the sections in the illusion before deciding which one to explore next. Just now, she thought about going to the Tree Hotel since that beast on the tree looked interesting enough.
But she had completely forgotten about it when she saw this "Mysterious Mountain".
Her heart was beating faster again.
This time, it wasn't caused by Angor's illusions. She believed she just felt Mystery energy.