(An AU where Kevin was corrupted by Springtrap and Phone dude (Anthony) had to seal Kevin somewhere to prevent him hurting anyone and this is what I came up with)
(This made my mentally cry while writing this)
(Original song Is Lullaby for a Princess)
(For Lucymidnight )

Fate has been cruel
And order unkind
How can I have let you
Slip away
The blame was my own
The punishment yours
My tears fall to the sound of your name
But into the darkness
I'll bring you a song
And I will your company keep
To the corrupt soul
And Springtraps main role
My heart will break today

Once there was a man
Who was a peaceful soul
Looked upon his boyfriend and smiled
He looked out for him
But there were five
Who didn't appreciate
The man he was
So great was his pain
And so kind was he
That a certain rabbit took note
And corrupted the one this man loved above all
And his fury was unlike
The man had ever saw

Soon did this man
Take notice that others
Did not give his lover ado
And he tried to help him
As best as he could
He watched as his lovers
Unhappiness grew
But is the everlasting hold
Of darkness that swiftly
Takes hold of the mind of its host
And this man tried everything
But he couldn't stop
The corruption of who
Had needed him more

I'm sorry Kevin
For what I didn't do
Rest now wherever I sent you
Hear my lullaby
On the winds of the earth
Through light
Through dark
And through space
Carry the peace
The coolness of hope
And carry my sorrows in kind
Kevin you're loved so much more
Than you know
May our problems be
Far from your mind
And forgive me
For being
So blind...

A years now before us
And I am alone
I never imagined
This day would come so soon
May these long days
Swiftly pass I pray
I love you
I miss you
All these miles away
May all your dreams be
Sweet and calm
And may you rest in your bed
Of tears I've cried
And know not of sadness
Pain
Or kill
And may I meet you soon
When you wake

So sleep...
Sleep...
Sleep...