How to prevent the Sight of Surrender from spawning?

Question

What items and where exactly do I need to use in order to prevent the Sight of Surrenders from spawning?

I've heard about "mouthpieces" that are obtainable in Roshamuul in a box - 1 per 24h. How many of these do I need to use and where to make this work?

Answer 1

To prevent Sight of Surrenders from spawn, you would need to use 100 Crude Horn With Mouthpiece on the northern wall everyday.