Dr. Okayado was deeply immersed in his thoughts, "Meroune doesn't need to know this, she doesn't deserve this. This bacteria is lethal for mermaids and she also came a bit late, I'm not sure that whether she'll survive or not." A sharp knock on his chamber door forced him back to his senses, "Ok, come in."

A standard Arachne and a common Centaur walked in, both were in their cop uniforms. The Arachne stated, "Good evening Doctor, I need some information regarding one of your patients, one Meroune Lorelei."

"I'm not bound by law to divulge any information about my patient, Detective Rachnera." the doctor sternly replied, he already saw their names on their nameplates.

"Well, then her blood will be on your hands, Doc. She is being targeted by a rogue assassin. We're trying to cover for her as her life is at a risk, she might be killed if we delay any further." the Arachne stated with contemplating eyes.

"Hmm, that's how it was then. Meroune came to me with a very persistent bacterial infection namely Areomonas Hydrophila. She had a huge ulcer and the infection is quite lethal for the mermaids. Somebody must have poisoned her with the bacteria." the Doctor gasped in terror.

"By the way Doctor, where's this bacteria can be found naturally?" the Arachne asked

"It's very common in the swears." the Doctor replied.

Centorea was shocked inwardly,"Rachnera's deductions are making sense."

"Thanks Doctor." The Arachne and the Centaur went out, suddenly the realization hit Okayado, "She has extracted the information from me with such ease, what a cunning detective."

(In Kurusu Household)

Mero was waiting on her wheelchair, she vaguely felt her bandaged ulcer. It was clear that she was dying, she knew form her experience that this infection is lethal for mermaids, her own grand-mother died due to this."Why the detectives insisted that I should wait alone? Did they find something?"

A skittering sound followed by a clattering of hooves attracted her attention, the detective duo were standing infront of her.

"Ms. Mero, how's that ulcer?" the Arachne asked the Mermaid.

"Not good, I'm not very hopeful about coming around." Mero replied.

"Well we have found out the killer, we have undeniable proof about her involvement." Centorea sternly replied.

"Then why did you call me out? I'm not a relative of the victim?" Mero looked irritated.

"Ms. Mero is your room covered by CCTV?" Centorea asked.

"NO, why should it be, I've my privacy to protect. What are you trying to insinuate?" Mero looked into her eyes.

"So there's no proof that on the night of the murder, you were in your room." Rachnera followed up.

Mero grabbed her belly and started laughing, " ...oh my god. You guys are really naive. How can a Mermaid leave without her wheelchair and the front door was under CCTV coverage, it didn't catch me."

"Exactly, mermaids didn't need to walk or wheel around, when they can swim. Tell me why you are infected with Areomonas Hydrophila ? That thing is only found in swears and your pool room is daily cleaned by Ozone blast. How did it got onto you?" The Arachne had all her six eyes focused on the paling mermaid.

"What does that mean?" Mero gulped.

"Someone asked a private detective to tail the victim. The same person never contacted with the concerned detective, in person. The mailbox which was propped up beside Hotaru Mall for their information exchange is at a suitable height for a mermaid on a wheelchair. We even found some grease on it with traces of Mermaid slime." Centorea towered over the quivering mermaid.

"So what, even if I swam in a dump, hired a detective to spy on someone and never came face to face with the said detective, what do these prove?Are you trying to harass me?" Mero was now furious

"But still, Ms. Mero all these things only point to your obstinate infatuation about the victim, but there's other thing, we found grease the victim's right paw, what if I inspect your wheelchair's protruding axel." with a fast move Rachnera lowered her body and grabbed greasy leftover from the axel, "Ha Kobold furs, if we test their dan, maybe we'll find a match." Rachnera looked directly in Meroune's eye.

Mero lowered her head, and started laughing psychotically, "Damn, bitch, who knew that her stupid furs will be stuck on my wheelchair. I asked the servicing guy to grease them, so that I can move faster. ..the grease got me. What a tragedy, fine now arrest me, detectives."

"You don't have much time left, we already know the spread of your infection, you have at-most a week at your disposal. I really don't want to press charges on a dying mermaid. Don't leave the town till you die, is that understood?"

(Two hours later in a Bar)

"Now that you explained it, it almost looks to be pretty easy." Centorea sighed while gulping her Wine. The girls thought that the closure of the case should be celebrated by drinking so they were at this bar, drinking their asses off.

"Yes, if we had pieced it in a broader perspective we would have nailed her earlier. It's right that she can't leave her room at her will but she's the only one who can ditch the CCTV by swimming through the swears, she already had her accomplice waiting her with her chair near the swear, probably the wheelchair servicing guy. She can easily sneak that out with his help and make him bring it back during the next day. By using this trick she got out, Hurley already punched the light's out of the Kobold so it was easy for her to kill Erika. Then she threw the dagger down the drain and left according to her plan. Her motive was to kill Erika in order to protect her master. She really loves him, with her life."

Rachnera gulped her coffee, "So probably within a week that cuckfish will die and Kurusu will be single again."

Suddenly Centorea felt her cheeks heating up, Kurusu was a handsome man, she thought, "I better order a dress for Mero's wake. I need to impress him."

"Proud Centaur race, my ass. Look at Ms. prude frolicking on the prospect of picking him up on the very wake of Mero. Guess I also need to up my game, I also need to bind that pesky lawyer in Turtle shell position before Ms. Prudes gives him a ride on her back." unlike Centorea, Rachnera got drunk on Caffeine but that never meant that her deductive reasoning would also be out.