Modred's Curse

I am a open book of magic most sour.
I am the tome of shadows you scour.
You scan me for spells this dark hour.
You read my faulted pages by the fire.

But who can comprehend you, Modred?
Would Merlin know the pages you've read?
Could a candle's flame enter your head?
Why is the Necronomecron by your bed?

You spurn me but my darkness you read.
For your familiar you'd surely intercede.
I have watched your cat for you bleed.
You hold your wand like a broken reed.

Does your eyes sparkle as you interpret?
Or do you think and just then forget?
Are we all just to you like a toy or pet?
Don't you now have a least one regret?

Read on as for me you will surely learn.
With care I know you will soon return.
I will watch you as your eyes will burn.
Know this, "One day it will be my turn."