By the time the trio hit the eighth floor, they heard a muffled boom. Billy pressed a button by the stairwell that led from the ninth to the eighth, causing a massive steel door to slide from the ceiling and into the floor. A hydraulic hiss signaled that the door was locked into place. This floor was comprised of numerous doors and rooms side by side, forming a tunnel, much to Jill's dismay.

"Let's hope that ain't what we think it is," Billy says. "In the meantime, why don't we scope this place out?"

"What's on this floor anyway?" Jill asks.

"I'm not sure," Billy replied. "Never been on this floor before. I've only been on levels three, four, five, and nine."

"What's floor nine?" Leon asks.

"Shooting range." Billy points to a door. "I'll take this one."

"I'll take the one right next to it," Jill says.

"I'll take one on the other wall," Leon states.

They each took a door and rushed in.

Billy found himself in a vast, dimly lit library. Bookshelves stretched as far as he could see, despite how small the room looked in the tunnel. He strolls through the numerous aisles, his rifle at the ready, and finding that no shelf held any books. His good friend Chris told him that he encountered a gigantic snake in that "Hell on Earth mansion," and Billy was in no mood to take second chances.

"Hello?" Billy shouts into the vast emptiness around him. "Anybody living in here?"

A scurrying noise catches his attention. Billy's laser sight scans the immediate area, his footsteps coming slow and deliberate. After a few tense moments, Billy found his target crouched against a shelf and shivering.

"A bunny?" Billy says, puzzled. "I got nervous because of a bunny?" The former Marine hunches down on his knees. "Come here, little fella. Come here. I'm not gonna hurt ya."

A small, white rabbit hops towards Billy. Its nose twitches and hops into Billy's outstretched hands.

"Now, aren't you cutest little thing. Jill's gonna freak when she sees you, isn't that right…girl?" Billy sits the rabbit on his shoulder, finding her to be small enough to sit there without any problems. She nuzzles his neck. "Now, where did you come from?"

A loud banging noise snaps Billy's attention away from the small bunny. He sets her down on of numerous shelves.

"Stay," Billy orders. The rabbit seemed to understand the command and sat stock-still. "More obedient than my German shepherd ever was, that's for sure."

The Marine steps through the dark aisles, making sure not to get lost. The banging noise comes again, giving Billy the direction he needed. He races through the aisles and finds a man, or woman, trying to bring down one of the shelves but to no avail.

"Excuse me, but can I help you, sir?" Billy asks. "Or ma'am?"

The head of the person banging the shelf down turns towards Billy. The Marine readies his rifle and prepares to fire. A balding head, gray skin, and lopsided face told Billy all he knew. A single shot at the base of the zombie's neck dislocated its head from its body. For good measure, Billy slammed the butt of his rifle into the zombie's chest and stomped on its head.

"Now, let's see who you were." Billy digs through the corpse's body and finds a pair of dog tags, a lighter, and a pack of cigarettes. "Sorry, Dan, but you me five bucks." Billy digs again and finds the zombie's wallet and takes out fifty-dollar bill. "And that was over ten days ago, so considered your debt repaid."

Billy pockets the bill, and lights up a cigarette. "I've been devoid of cigarettes for two months. I earned this!" He takes a long drag and exhales slowly. "Well, this was fun." He flicks the cigarette onto the fallen Dan. "Thanks again, buddy."

He turns back towards the entrance, to find the white rabbit at his feet. It climbs up his pant leg, and hops to his shoulder. Billy gives it a reassuring pat on the head and rubs underneath its chin.

"If you're gonna follow me, you're gonna need a name," Billy contemplates. "How 'bout I call you Rebecca?" The rabbit seemed to nod in agreement. "All right, Rebecca it is."

Billy stepped slowly through the rest of library, trying not to discourage the rabbit on his shoulder in case they encounter something other than the undead.

Jill's door led into a wardrobe closet of sorts. She found a blue windbreaker better suited for her figure and switched out for Leon's. She tied the beat-up, worn jacket around her waist. The riot gun sweeps the room as Jill walks deeper and deeper into the closet, finding it to be one of the biggest closets she's ever seen in real life. Granted there was Chris' but it was filled with ammunition for high-grade weapons.

"Hello? And what do we have here?"

Jill came to a chest drilled into the floor. Instinctively, Jill pulled out a small black case from her back pocket and opened it up, dropping Leon's jacket. Various chrome tools were arranged in the case, and resembled dentist tools.

"What secrets do you hide?" Jill asks the wooden box. "Be a good little boy and say 'ah'."

Jill takes out a tool with a straight point, and a one with a curved hook. She jams them into the box's lock and tampers. Seconds pass, the only sound that of the lock's tumblers being opened. A final click resounded in Jill's ears.

"Bingo," she whispers. She kicks the top of the box open and she smiles wide. "Oh, yeah."

Jill eagerly digs in the box, pulling out a grenade launcher with a full clip, and extra rounds for her Magnum. Jill squealed with delight with holding the powerful weapon in her hands. She then found a strap for it and holstered the launcher around her shoulder. She headed for the door, adjusting the shotgun in her hands.

"The things a girl needs to accessorize these days," Jill mutters, grabbing the doorknob.

Leon heard the squeals of the delight of woman acquiring a powerful weapon. He smiled, imagining Jill jumping and down like a child on Christmas morning. Clearing his thoughts, he examined the cramped room he decided to take. It looked like someone was living in here, possibly someone out of the Marines from the lack of anything, except a small bed, a single poster, and a desk with barely anything on it, save for a computer.

Leon sits down at the desk and boots the computer up. After going through its animation of start up and its login screen present, Leon didn't know what to do next.

"Damn it!" he shouted. "Passwords I can do, but a username is something different." Leon scoped out the rest of the room and found an ID tag imbedded into one of the ridges on the monitor. "How best can you serve me, Sgt. Daniel Olivera, head of Special Projects? Wonder if he's related to Carlos."

Leon types in "Olivera, Daniel" in the username slot and presses the tab key. He quickly types in "Biohazard" and hits enter. A red warning screen pops up, blaring "Incorrect password."

"You wanna be difficult, Mr. Computer?" Leon taunts. "I can be difficult."

Leon next types in "Move Zig", causing the red warning to appear again. "All Your Base" was entered, and the warning blared again. After trying unsuccessfully to come up with a password, ranging from "4 Itchy Tasty" to "Master of Unlocking", Leon slammed his fists on the desk in frustration. Then he noticed what the paper depicted: a blown up security camera photo of Jill in her S.T.A.R.S. uniform, possibly before her team was deployed to search for Bravo Team.

"If this don't work, I herby quit," Leon sighs. "Jill Sandwich."

A green sign pops up, saying "Password Accepted." Leon smiles contently. He scrolls through the computer's files and finds a document titled "Biohazard." Leon double clicks on it, bringing up a Microsoft Word document.

"And just what do we have here? 'If you are reading this, then it means that the virus has spread beyond our control and the infection has spread to the town above. We tried our best to halt their progress, but their regenerative abilities are far too great. I only hope that whoever comes knows how to deal with these things'. Yeah, they do."

Leon scrolls past much of the text, finding it to be boring and tedious.

"My God, it's like reading an online strategy guide. Oh, here we go! 'The Tyrant we recovered from the Caliban Cove facility showed signs of heavy damage from the interference of the S.T.A.R.S. team that invaded it shortly after the mansion incident. Its base programming was still intact, but its body would require extensive reconstructive surgery. After moving it down and injecting it with the Veronica virus, its body began to show signs of additional mutation. It could regenerate from otherwise fatal wounds and appeared to shrug off similar attacks.

'With an infusion of DNA from the strange creature presented to us by Mr. S, the Tyrant's powers began to really change. Its claw could now absorb the genetic information and material from other beings with any strand of our viruses. After detonating a section of its face with an acid bomb, when it started absorbing the genetic material of several of our infected personnel, we were able to put it back in its tube and keep it heavily sedated. We fear that should it awaken, its hyper-immune system will counter the heavy sedatives and break free.' The Nemesis coming up the elevator shaft. This is really bad news."

Billy found a small duffle bag inside the vast library and dumped the white rabbit in it. Rebecca's head poked out of the small opening, seemingly analyzing its surroundings. Billy's rifle swept down numerous aisles, ready to blow away anything else that ever came in his path.

"Keep your cool, Coen," Billy mutters. "The last thing you need to do is panic."

The ex-Marine came to the end of the library. A stone wall stood in his way. Slightly disappointed, Billy turned around and stopped. A thunderous shaking noise was felt beneath his feet. Out from the floor, erupted heavy chunks of wood and bookcases. The Tyrant had found him.

"Ah, crap," Billy mutters. "Well, come on, let's get this over with."

The Tyrant roars and charges. Billy takes aim with the rifle and fires at the monstrosity's chest. Chunks of flesh explode from the impact but it doesn't even slow it down. Billy clicks the rifle into auto-fire mode and fires rapidly around its pulsating heart. The Tyrant grunts in frustration and continues towards Billy, smashing through anything in its path. The rifle clicks empty. Before Billy could reload it, he felt an inhuman fist around his neck. The Tyrant easily lifted him up and reeled back its claw.

"Chew on this, you mutant bastard!" Billy shouts. He unsheathes his knife and plunges it into the Tyrant's eye, and twists. The Umbrella creature shrieks in pain, vile blood flowing from its wound. Billy boots the monster in its face and yanks the knife out. He falls to the ground and draws his TMP. "This'll shut you up!"

The TMP's 50-shot clip empties into the Tyrant's chest, chewing away the tender flesh around its heart. Once the modified sub-machine gun was empty, Billy smashed the butt of his rifle into the Tyrant's heart and pushed back towards its entry point. The beast was still in too much pain to realize what was happening, until it plunged back down to the tenth floor.

Seeing the creature fade out of view, Billy reloaded his weapons and had himself another cigarette. He checked on the rabbit, finding it not to badly shaken up.

"How you doin', Becky?" he asks the bunny. She responds with a twitch of her nose. "Yeah, me too. Let's get outta here." Billy exhales, creating a small path of smoke to the door.