I can not see the monster

Sudden damage came in while carrying out minerals in survival mode.
But I did not find any monsters.
So I heard the sound through the earphone.
It was the sound of a spider.
I just wielded a knife, but I did not hear any damage to the motion or sound, and I switched to create mode and burned it.
The sound heard the damage of the spider, but I could not see the spider burning.