As William only had one tail form, he kept using his fire element, alternating it with lightning as well.
Fire was domineering, but lightning had a strong purifying effect against fog and monsters. Both became his sharp sword against the monsters and fog, killing his path deeper without any hindrance.
During all this, he kept feeling more heat and pain from his chest. The seal seemed to get more stirred up the deeper he marched in the fog. As he guessed, the fog at the outer zone was fainter and thinner than what was in the deeper areas.
He used the place created by his grenades to rest and keep weakening that seal. He used arrays, trying to crack another chain in this seal and enable him to use two tails at least.
Yet after all these hours he didn't succeed, not until now.
"Phew! I finally broke another part of this damn seal," he stood up, taking the form of two tails, enabling him to use two elements at the same time.
He examined himself. His body didn't change much, but he grew slightly taller, and his muscles bulged than before. He was now stronger and faster than before, especially with the ability to use two tails.
Even if he leant to use one element in this form, then he could use the other tail to hold a weapon. He kept using his glaive and missed the time of using his sword.
As he armed one tail with a sword, the masters watching him felt more puzzlement.
"Can he grow another tail?!!"
"What the heck?!!! Is he a descendant of a monster or what?!!!"
"We have to report this back. I believe this will shock everyone back there."
The various masters sent this news back to others in the city. And as they expected, such news surprised everyone there.
William didn't know he stirred up a storm back at the city. He started walking deeper, while feeling the pressure exerted over him decreased by a large margin.
In this form, his strength increased by a big chunk, and his attacks became deadlier, harming more monsters and causing deeper wounds. And yet he was still unable to take down monsters like he used to before getting his spirit body sealed.
He walked towards the deeper zones following the attack strategy he used from the start, with a slight change. He used the safe zones before to rest, yet after a few days of walking and fighting, he started to use them as a shelter from monsters.
After these days, the number of monsters coming out from the swamps was simply hard to control. He had to create safe zones using his grenades anywhere he went, took shelter there and killed monsters using long distance techniques.I think you should take a look at
This was slightly like how he vented his rage over monsters when arriving in the region. And doing so helped to decrease lots of pressure over him.
He started to use healing potions more than before, as he kept getting hit multiple times in every battle. The more he got hurt, the more he missed the time when he used his full spirit body.
"If I have my spirit body, not a single bastard of you can touch a hair of mine!" he shouted back in rage while attending to a gruesome looking wound appearing on his left knee. He got hit by a scorpion, and he had to use both purifying elements and healing potions to contain the toxin and heal that wound.
He rested inside one of the safe zones, inspecting things around. He kept fighting and running for days now, close to a week. And after all this time, it was clear that the deeper he went, the smaller the safe zone would be.
"I hope inside that inner zone, my safe zone won't be smaller than ten metres in diameter," he was now resting in a zone that wasn't larger than fifty metres.
The safe zone started from expanding for hundreds of metres all the way to be formed of few tens of metres now. He knew this was thanks to the increase in the fog intensity the deeper he went.
The only solution he got was to use more grenades each time to create this safe zone. He used one hundred grenades to create these zones before. But he had to repeatedly use them in the past couple of days, ending up spending lots of his stored grenades.
As a precaution for running low on grenades, he started to use his rest times to make a few grenades. And every day he spent up to five hours making grenades alone.
This helped to slightly replenish the lost grenades, but slowly his expenditure skyrocketed when a new breed of monsters appeared.
"Flying toxic hornets? What is this luck?!!"
William first saw these nasty monsters after walking for two weeks inside this zone. He was already slowly advancing thanks to the densely packed monsters in the region. In the middle of one hectic run and battle, he heard a weird noise, coming from high above, making the hair on his back to stand to no end.
He recognised this sound as the wind fluttering on the bodies of flying beasts. He turned towards its direction to see flying hornets, with four pairs of transparent and fast flapping wings coming towards him.
Each monster was around one metre in length, not that big actually. Yet they came in such large numbers to make him feel even the gloomy dark green colour that prevailed the world of fog vanished and turned to pitch blackness of these monsters.
The moment he saw them, he didn't hesitate to take hundreds of grenades, throwing them towards these monsters, and activating them while running towards one safe zone.
He was thousands of metres away. He managed to get inside thanks to his repeated dashes alongside the aftershock of the fierce explosions happening from his grenades.
As he slowly cleared the mud and dust he suffered from such a rough fall, he turned towards the outside, thinking about how unlucky he was.