Harry:
IN the first book he tried to kill me, In the second book there was a snake,
That man which comes to me, And speaks my name.
And will I live again? For now I find.
HE-WHO-MUST-NOT-BE-NAMED is there-Inside my mind.

VOLDEMORT:
Fight once again with me, our strange Duel,
My power over you, grows stronger yet.
And though you hurt me , And love Dumbledore
HE-WHO-MUST-NOT-BE-NAMED is there -inside your mind.

HARRY:
Those who have seen your face,
Start to die.
I try to kill you

VOLDEMORT
It's me they Fear.

Both:
You're/my enemy and my/you're spell in one combined.
HE-WHO-MUST-NOT-BE-NAMED is there inside my/your mind.

(in the background)
He's in Hogwarts ,HE-WHO-MUST-NOT-BE-NAMED. . .
Beware HE-WHO-MUST-NOT-BE-NAMED. . .

VOLDEMORT:
In all your tragedies ,you always knew that man and mystery . . .

HARRY:
...Were both in you.

BOTH
And in the forth, when you/I killed cedric,
HE-WHO-MUST-NOT-BE-NAMED is there/here inside your/my mind . . .

VOLDEMORT:
Cast spells, my wizard of Hogwarts

HARRY:
He's there, HE-WHO-MUST-NOT-BE-NAMED...