[PERCY, spoken]
My mom's gone.

[LUKE, spoken]
From this world. But if she's anywhere, she's in the Underworld.

[PERCY, spoken]
I'll do it.

[LUKE, spoken]
You will?

[PERCY]
Yeah, I'll do it
Not 'cause my dad needs me
He's been less a dad and more absentee
But if my mom's alive
That's where she's bound to be

I'm leaving now, I better pack
Hades took my mom, I'm taking her back

(spoken)
So what if no one's come back from the Underworld? I'll be the first

[GROVER, spoken]
And I'll be the second first!
[PERCY, spoken]
Grover, I can't ask you to come

[GROVER]
You're my best friend, dude, so don't get mad
But I suspect you'll need protecting when things get bad
And this kicking quest may be the best chance I've had
To put my past behind me

So if you haven't guessed
I'm coming on your killer quest

[PERCY]
So, bon voyage and fare me well

[GROVER]
We're gonna fight each foe, each curse, and spell

[PERCY]
We're gonna march straight down to the gates of hell

[LUKE, spoken]
Underworld

[PERCY, spoken]
Close enough
(sung)
I'm finally gonna pass a test

[GROVER]
We're going on a killer quest

(spoken)
Don't forget this: official Camp Half-Blood questing backpack. It comes pre-packed with everything you need: gold drachmas, ambrosia squares, deodorant

[ANNABETH, spoken]
You need me too, Seaweed Brain. If you're going to save the world, I'm the best person to keep you from messing up

(sung)
Five long years stuck at camp
Underneath Athena's locked down clamp

Been waiting for my chance
To prove I'm champ

I've got mad battle strategy
My mom will be impressed
I'm coming on your killer quest

[ALL]
So blast the horns, get the flags unfurled
Past danger, slings, and arrows hurled
We're gonna march straight down to the Underworld
[PERCY, spoken]
Luke, are you coming too?

[LUKE, spoken]
I'm needed here, but how about something for the road?

[PERCY, spoken]
Shoes, awesome... Shoes with wings, now that is awesome!
So, where is the Underworld?

[LUKE, spoken]
Look for D.O.A. Records

[PERCY, spoken]
It's a record company? Actually, I am not surprised

[CLARISSE, spoken]
Don't get eaten by monsters

[PERCY, spoken]
Monsters? Who said anything about monsters-?

[CHIRON, spoken]
Have a great quest!

[PERCY & ANNABETH]
So we're half-bloods
Not gods but demi

[GROVER]
Won't go halfway, it's all not semi

[ALL]
It's up to us-

[PERCY]
So let me try my best

[ALL]
As we journey west
We're going on an awesome

[PERCY]
Dangerous and scary

[ALL]
Thrilling

[ANNABETH]
Monstrous

[GROVER]
And hairy

[ALL]
Killer
Hero's
Quest