"Well, most of Erika's attacks are concept based. If her theories are more concrete than me, she could overpower me. Erika's the only person that's ever come close to killing me at one point. Here's the catch, she's way into herself, like a superiority complex. Once you catch her in a mistake, Erika just starts to lose that intimidating upper-hand. She did propose a logic battle against me, the closed room barrier. I have to think that out carefully, or else I could potentially make a mistake myself and have Erika harm your friend..." Battler said, focused in his thoughts to think this out. Just what was the key to shattering Erika's closed room? [i]Flip the chessboard...Erika probably didn't want me to know that much, thats why her explanation is so vague...There's no taking her words back since she's said that in Red. Wait, the chain, she didn't describe that in detail. Like if it were longer, you could set it from the outside and still the room would be technically locked. That ensures an escape from her closed room and to keep the illusion of the "perfect closed room." I got it now![/i] Battler thought about it a little more.

Erika smirked as she saw that Eren was going straight on to crush her with his foot. In the last moment, Erika disappeared in a cluster of blue butterflies, reforming from those same group of butterflies, appearing in the air with some sort of levitation. "You missed~" Erika playfully taunted as she swung her scythe once, a manifested attack formed by the Blue Truth took the form of cresent shaped energy wave headed towards Eren. Though, this started to bore Erika that instantly, so she was just ready to send in a real blade to impale Armin.

"Hey Erika! Remember your whole game proposal! I'm pretty sure you have some loose bolts, because I see one definite way to break your closed room!" Battler called out to her.

"Oh really? Come on then, show me the most ridiculous theory you have. Bwaaaaaaatttttlllllleeeeerrrrr-ssssaaaaannnnn!!!" Erika seemed to be on the verge of insanity, laughing hysterically at his claim.

[url=https://www.youtube.com/watch?v=aWog9PSm3rM]BGM - Dread of the Grave (Battler's Theme)[/url]

"I remember that you said with the Red Truth that this closed room of yours has a door with a chain, a window, four walls, a floor, and a ceiling. Yet..there was one thing you never fully explained with your Red Truth, and I'm sure as hell you can't redo it. The chain of the door, you never fully explained if it was short or long, and if it was long, then it would be possible to lock it from the outside. Am I right, detective?" Battler grinned with a cocky manner, knowing that Erika had no way of taking back this mistake.

"Huh? A long chain? You can't be serious...right? That's just non-sense..." Erika stuttered a bit at her words, acting as if Battler's claim was the most mindless thing...but in fact, Erika was in shock because she knew that this claim was totally possible. Stronger than her "perfect closed room." Upon the realization on this, the barrier surrounding Armin began to show cracks, starting to weaken due to this contradiction.

"Useless, it's all useless Erika. You're quite naive, the reason why you couldn't beat me and Beatrice at the same time. So, here's my Blue Truth! /Since you never explained the specifics of the door's chain, it's possible for the chain to be long. Just long enough to unset, go outside the door, and set the chain from the outside and close the door. From that understanding, the door is still locked once outside, so that's a potential way to escape the room and still make it a perfect closed room!\" Battler said loud and clearly, his Blue Truth gaining the power of denial on Erika's earlier Red Truth. Strong enough, the barrier surrounding Armin shattered into bits, freeing him from the "closed room" Erika had created. In addition, seeing that Erika was weakened greatly due to her Red Truth being overpowered, Battler transferred the power of his Blue Truth to Eren, knowing that would give enough strength to face Erika.
---
"...." Silver was just frozen in shock at how one of the girls had just exploded into blood and guts, but even if it was revealed that she was safe, it was still frightening to see that.