My previous "Letter O" song parody, based on Let It Be, is here.

His face is pale, an eponymous vale

No step forward to be gained

A villain attacking Treguard

And it looks like he's constrained

Mogdred is gloating: he is certain and he's proud

Time to cast a spell, Neil is in a SHROUD

Don't let him win

Don't feed his glee

Be the good team your friend needs you to be

Dispel his spell

Then you can go

Wait, where's the O?

Letter O, letter O

Can't dispel if it's not said

Letter O, letter O

Can't you get it in your heads?

I don't know what you're going to do

Let the scene run on

I doubt if you'll make it off Level 2

It's funny how persistence

Makes no difference at all

And how "stalactite" and "turn-spell"

Just make you sound like fools

It's time to give a massive clue

To test the limits and break through

No right, so wrong

No rules for you

We'll see

Letter O, letter O

Thought he said that he was constrained

Letter O, letter O

It's not just him who's pained

Treguard groans but there you stay

Let the scene drag on...

And Hugo's hearing in his ear: "Give them more aid:

We're near expiring because the quest is so delayed"

And one phrase jogs their memories like an icy blast

And Mogdred fades away. And Neil must exit fast(ly)

Letter O, letter O

Mogdred cries (so do we): despair

Letter O, letter O

Ridiculous, unfair

Soon this scene will be in the shade

Let the quest go on

They're doomed when they think the next spell is SPADE