The Power Of The 14th
Allen stared hard into the mirror in the room of the 14th. This was the only place where his reflection was replaced with those of the 14th Noah. He suddenly felt an impulse to check the mirror, to touch it. But this time the warning bells in his head and that dream that plagued him could not overcome this strong feeling.
He raised up one shaking finger and slowly pushed it nearer and nearer to the mirror. Just as he was about to touch it, as it was foretold in the dream, the arm of the 14th shot out and gripped tightly to Allen's own arm.
Slowly, inexorably, the darkness flowed out of the mirror and latched on to him, ignoring his cries and struggles, until it encased him completely. As it touched his innocence for a moment, it flared up, fighting back its enemy until it was overcome and changed colour to sickly blue. The darkness then flowed into his star-shaped scar, disappearing as soon as it had appeared, with no indication that anything had happened at all except that his own image peered out of the mirror and at each point of his scar, a different symbol had materialized.
He did not contemplate the meaning of the symbols as, instead of bloodlust as prior to the other Noah, he only felt a strong yearning for music. Strange music entered his head and as well as many different thoughts.
Fools have searched for eternal life, and he had found his! His music would forever live in the hearts of others and to be rediscovered again and again, never ending for as long as time exists, he thought and he slowly stood up and walked to the piano. The ark was his anyway, so he figured no harm in configuring it to his liking.
Just as he was about to play the first notes of that song, he felt a slight tremor in the Black Order. He sensed a door open and from it various akuma. An assault! Configuring the ark will have to wait. He instantly conjured up a single door, which he passed through after teleporting every single exorcist and general ready for battle. As he stepped through the door, he called forth his innocence. However it no longer took the form of armor, it took the exact appearance of Mana's long suit and jacket, complete with white hat.
As he did so, his scar disappeared, replaced with a growing darkness that covered his entire body, to the amazement of the exorcists and generals, with the exception of General Cross, who just smiled ever so slightly.
A murmur rippled through the crowd of akuma, who had stopped dead in their tracks, with exclamations of "14th Noah!" 1/14 of the akuma detached themselves uncertainly from the main group and sided with Allen.
Allen, not waiting for an invitation to start the battle, conjured a piano from the ground and sat on it. Immediately, the akuma surged forward, to combat the exorcists and opposing akuma. Although at his current power he could easily tear a level 4 akuma to shreds or to just call for self destruct, music was his livelihood and he really disliked irritating interruptions, so he played a melodious song of protection and safety that formed into a transparent dome that could withstand 100 level 4 akumas without fail.
After a moment of thought, he then played a song of creation. The music congested together to form an army of white creatures, all resembling medieval suits of armor that immediately charged into the fray. This is far too easy, he smiled to himself.
He then played a battle song that inspired hopes into his allies and fear into his foes. A counter melody disrupted his music just when he was about to reach the climax. He looked at the player of the second piano, at the face of the forever grinning millennium earl himself.
Finally, a worthy opponent.