He used to fight ghosts and blood maidens, including some devils before so he remembered clearly how to cast the holy spell. He mumbles the spell then a magic goblet appears at the head of one of the zombies then golden water flowing out of the goblet to its head. The zombie groans in anger. But instead of melting (like the ghosts or blood maidens), it suddenly runs towards Minsook followed by the other zombies.
"Damn it, I just make them angry! I need stronger spells..."
Minsook quickly scans his spell book again while stepping back carefully until he is in front of the tent.
"Sanctus Clamor!" said Minsook clearly while raising up his staff.
A big trumpet appears on top of Minsook's head and there is a loud scream - not clear what words or language are used in the scream - sound from it. Minsook can see a wave of wind blowing to 5 of the zombies in the middle and blowing them a few meters away. The other two zombies are still chasing Minsook and Minsook chooses to run while occasionally turning back to cast the "holy shout" spell. The three zombies who were attacked by him before already start to chase him too, but they have been wounded in many parts of their body.
"I definitely can kill them if I use the spell several times more... Wait," suddenly Minsook halted his run, "where are the other two zombies? Are they dead?"
He cast the spell one more time as he faced the zombies again.
"Is there really a chance the two zombies died because they got bigger damage? Or... oh no, the backpack!"
Minsook should run through the zombies to get back to the tent: he just realized he left the backpack full of potions and the mirrors. If something happens to the mirrors, Minsook thought, not only me who can't get back but Bonhwa hyeong and Kichul hyeong also need to restart their journey.
"I should take the risk!" decided Minsook, "Sanctus Clamor!"
But his spell isn't as strong as before as it only makes the zombie stumble and fall.