The breach between realities (SCP OC x creepypasta universe)

Mission Log: Segment Seven

*Third POV*
Mike writhed in agony while Natalie and Soul tried desperately to hold him down.  Jane could be heard screaming directions at Jack, who was muttering to himself from behind the wheel.  Mike's once beautiful eyes were now bloodshot with red irises.  Slenderman had been called to collect Lazari, as Mike had ordered.  Natalie was in tears as she watched the man she cared so deeply for scream in pain.
"Hurry Jack!"  Jane yelled.
"I'm going as fast as I can!"  Jack shouted, "This thing isn't built for speed!"
"Where are we going?"  Soul yelled, "We should be looking for a doctor!"
"That's what we're doing!"  Jane replied, "There's a nurse in southern North Carolina that helps people like us!"
"Her name is Nurse Ann."  Natalie explained, "She moved down to North Carolina a few years ago from her home in New York be—"
Suddenly, Mike roared and broke free from Soul and Natalie.  His eyes burned with blood red flames as he burst out of the van.  Jack slammed on the brakes and everyone watched Mike sprinted into the woods, screaming madly.
"We can't leave him!"  Jane said.
"I will pursue him."  Soul said as he unsheathed his sword "You find the nurse."
Jack nodded and returned to the van along with Jane.  Soul started to leave when Natalie grabbed his arm.
"Don't hurt him."  She said, "Got it?"
"I would never dream of it."  Soul chuckled.
He turned and ran after his former comrade.  Natalie watched him disappear and then climbed back into the van. 

Soul walked through the trees, his eyes on constant alert.  He knew Mike was significantly more powerful than him, with his only disadvantage being his skill with a sword.  An advantage that Soul was quickly losing.  How Mike was improving without any knowledge of swordplay was a mystery to him.  A twig snapped loudly to his right and Soul turned as Mike lunged at him, his sword drawn.  Soul blocked his first strike and Mike flipped over him.  Soul adjusted his stance and his grip as he stared down his friend.  Black ooze dripped from Mike's mouth as he snarled at Soul, his eyes glowing with dark red flames. 
"You are stronger than this, boy."  Soul hollered "Come to your senses."
Mike screamed at him and attacked.  His stance was unique, unlike any Soul had seen before.  Mike held his two-handed sword behind him while extending his left hand, leaving himself completely vulnerable to a frontal assault.  But when Soul attacked, Mike countered every move like it was second nature.
'What is this technique?'  Soul asked himself 'Where did he learn it?'
The two clashed and Soul immediately started to overpower Mike but was knocked off his feet when Mike swept his legs out from under him.  Soul rolled across the ground to avoid a strike to the head, then got to his feet.
"Your technique lacks honor."  Soul informed, "Strong as it may be."
Mike stopped and tilted his head slightly, then changed his stance.  He bent his knees and took hold of his weapon with both hands.  The sight shocked Soul.  He had met many master swordsmen over the centuries, but to see someone so inexperienced alter his stance with such ease was unheard of, not to mention frightening.  Mike dashed forward and Soul was barely able to parry a would-be fatal blow.  Mike charged again, this time cutting into Soul's left arm, quickly followed by his right.  Soul dropped his blade and grabbed his wounds.  Mike lifted his head with the tip of his sword and Soul scowled.
"Stop this."  Soul ordered, "You are not in your right mind, but you must realize that this is unlike you."
Mike silently pushed his blade closer to Soul's neck, breaking the skin a little as he did.
"What of Natalie?"  Soul asked, "Does she mean so little to you that you would scare her so much?"
Mike paused and started shaking.  His flames brightening slightly.
"N-Nat-a-lee?"  He repeated.
"Yes."  Soul said "Natalie.  The girl you care for.  Do you remember her?"
"I hurt Natalee?"
"Yes, but you can fix it.  You just have to stop."
Mike dropped his sword and backed away.
"No."  He trembled "What...I do?"
Mike crouched and started crying liquid fire.  Soul walked over to his closest friend and hugged him, bearing through the pain of Mike's tears.
"You're going to be fine."  Soul hushed "The others will be coming back with help."
"Soul...berg."  Mike sobbed.
Soul smiled and closed his eyes.  Suddenly, Mike pushed him away before something crashed into them.  When the dust cleared, Mike's eyes were dark red once again and a black gauntlet covered his left hand.  Standing next to him was a man in his late twenties with black hair, gray eyes, and olive-toned skin.  Several tattoos of arcane and occult icons were all over his body and a red cloth was draped across his shoulder and around his waist.
"Able..."  Mike growled.
"What have they done to you, my friend?"  Able asked as he held his sword to Mike's hand.
Mike roared and pushed Able back as his blade materialized in his right hand.
"What are you doing Able?!"  Soul demanded, "Why are you attacking us?!"
"Be quiet sword!"  Able shouted, "You and your people have done enough already."
Mike and Able circled each other, then clashed.
"He told me that you poisoned him."  Able said as he and Mike fought "I fear I was too late to stop you."
Mike's eyes widened.
"Zalgo."  He gasped.
Able parried Mike's sword and stabbed him in the shoulder.  Soul ran to help his friend, but Able dodged his attack and drew his sword across Soul's back.  Mike glared at Able as he walked up to him.
"I will not let your suffering continue my friend."  Able assured, "May you find peace in the next life."
Able raised his sword and brought it down on Mike's head.