In here is a tragedy– art thou player or audience? Be as it may, the end doth remain: all go on only toward death.
The first words at thy left hand: a false lunacy, a madly dancing man. Hearing unhearable words, drawn to a beloved's grave—and there, mayhap, true madness at last.
This represents the play Hamlet Shakespeare Anthology 4
As did this one, playing at death, find true death at the last. Killing a nameless lover, she pierced a heart rent by sorrow.
This is Romeo and Juliet Shakespeare Anthology 1
Doth lie invite truth? Doth verity but wear the mask of falsehood? Ah, thou pitiful, thou miserable ones!
This is Othello Shakespeare Anthology 5
Still amidst lies, though the end cometh not, wherefore yearn for death? Wilt thou attend to thy beloved? Truth and lies, life and death: a game of turning white to black and black to white.
This is King Lear Shakespeare Anthology 2
Is not a silence brimming with love more precious than flattery? A peaceful slumber preferred to a throne besmirched with blood.
This is Macbeth Shakespeare Anthology 3
Once you have placed the books left to right you can now sort out the rest of the poem using the code you have. 4 – 1 – 5 – 2 – 3
One vengeful man spilled blood for two
The first number needs to be doubled. – 4 x 2 =8 ( 8 – 1 – 5 – 2 – 3 )
Two youths shed tears for three;
The second number needs to be tripled. 1 x 3 = 3 ( 8 – 3 – 5 – 2 – 3 )
Three witches disappeared thusly; And only the four keys remain.
remove the last 3. ( 8 – 3 – 5 – 2)
and there your answer 8352
I hope this helps.