The Devil's Cursed Witch - Chapter 347 Lesson To Blow A Whistle

... What if you are far away from the palace? What if you are up in the mountains? Will the sound this make reach you?"

"It is enchanted by my magic spell so you have nothing to worry about. When you blow it, I will be able to hear it no matter where I am."

"Oh, but if it lets out a loud sound, won't it disturb people?"

Morpheus shook his head. "Only I will be able to hear it."

It amazed her. "But how do I use it? Do I just blow or do I also need to insert magic into ...