Actually, even without the reminders from Northern Martial Zen and Prince Wan Yan, their disciples had already covered their ears. The sound of the long howl was not only deafening, but it also gave a feeling of blood boiling excitement, as if the blood in the whole body was ignited by the sound, making one's heart throb uncontrollably. And such a heartbeat speed is indeed harmful; those with heart disease might just have an attack merely by listening to this sound.
However, the effect of covering the ears wasn't very significant. Even though everyone around had covered their ears, the long howling sound was still like ocean waves, surging wave after wave. A few with weaker strength tried desperately to cover their ears, yet they were still so shaken by the sound that sweat dripped down their heads, and their hearts nearly jumped to their throats.
"I can't take it anymore!"
