Leo noted something down in his mind: Never try and commit forbidden crimes in the underworld and get caught by a freaky, spirit ghost, who just happened to be guarding it. Never.

This apparently called 'Mr White' guy was a ghost. Not the fake ones with sheets on top of their head, but spirit like, as if you could walk through them. He was, well white, and a cold gust of wind would hit them if they got too close. Mr White was wearing a Greek toga, and would fiddle with it now and then. However, he also wore a tie, and a hat. Which made absolutely no sense.

"So, children." He smiled. "Do you like, my new sense of fashion?!" He asked.

Leo opened his mouth to say exactly what he thought, but Reyna punched him. He doubled up. "Ow."

Reyna grinned an un-Reyna smile, "It. Looks. Amazing. Do you work out?" Mr White flashed a ghost-beam at her.

"I like you. I might not kill you. The others...meh."

The demi-gods stood there, frozen with confusion of what to do.

Run? That was the best option, but they couldn't just turn back. Not now.

Leo decided they stick together (not literally) until one of them formed a plan.

That's when he realised; he looked around frantically.

Talking about sticking together...

Where was Skye?

Cautiously, he nudged both Reyna and Nico to see if they got the message. He made a small gesture with his hands; to show they were empty. Both their eyes widened with shock and panic.

"What is it? Look, you're the first company I've had in centuries. Please don't make you kill you just now. " Mr White claimed.

"Nothing. " They all quickly said in unison. Mr White raised his eyebrows, however said nothing.

"I know you're hiding something from me-"

BOOM!

Mr White's eyes grew and his image flickered with fury. "This was all a distraction. There was another one of you. You never told me. " He growled.

Anger flowing through his soul, the spirit conjured up thousands of skeletons, which burst through the ground and tried to grab them.

Reyna, Leo and Nico gazed through Mr White and saw Skye, who had created the explosion, grinning. When she noticed the skeleton hands, she screamed and ran over to Leo.

Everything was chaotic with ghosts and bones and monsters, and Mr White, in the middle of everything.

Suddenly Nico pushed them back and drew his sword.

"Go! Find the disk. I'll take him. I'm a son of Hades. I can interact with ghosts. Now!"

Mr White smirked. Leo started to hate him even more. "You think you can take me, you pathetic demi-god?"

Nico gave him a bold look. "Yes." Mr White yelled and they both charged.

Reyna quickly grabbed Leo and Skye and ran forward into the battle. But quicker than they expected, the skeletons had them cornered.

"Okay. This is kind of terrifying. Reyna, you have anything?" Leo asked.

"Nope." Reyna replied. Biting her lip, Skye turned around and tugged at Leo's t-Shirt. Finding the tool-belt, she took out a hammer and hit one of the skeletons. Without warning, it exploded into ashes.

Leo face-palmed. "You're amazing Skye! Skeletons are solid. We can kill them!"

Reyna, realisation spreading across her face, began to fight. "I'm going to help Nico destroy these creatures. Find the disks. The quicker we get out of here, the better. Remind me to never help you again." She was smiling slightly.

"Thanks."

Grabbing Skye's waist and pulling her up, he sprinted, avoided the possessions, because he didn't really want to get roasted to his death.

Wait a second.

Wasn't he immune to fire?

"Oh gods." He muttered. "I am so stupid."

Carefully, he touched a gold drachma. It sent a pulse against his skin, but didn't burn or injure him. Skye looked delighted at this discovery.

"Well, my friend, which way?"

Skye pointed not so far away, somewhere to his left. Dodging a bone, (that was probably Reyna. Not Reyna's but... you get the point. ) he kneeled behind a stack of gold drachmas and in front of it.

The disk.

Which could fix Festus.

Without hesitation, he clasped it in his fingers. Of course, it couldn't be that easy.

On spur of a moment, a ghost suddenly appeared.

Now Leo was getting very annoyed. "Okay, I'm getting slightly fed up of ghosts that want to kill me. Who are you now?"

The ghost smiled, almost holding back a laugh. "I'm the owner of that disk. The one you're holding."

"Oh." He looked down. "Um..."

"So, tell me half-brother, what do you need it for?"

"Half-brother...?"

"Of course, " The ghost replied, "How else would you find it?"

"Festus. I mean... he's broken, and this is the only thing that can fix him is this... please. He's my mate."

"Festus is still there? I didn't know."

Leo grinned, "Yeah,"

"Alone, huh? An extra wheel?" The Ghost asked. "I would know." His hands burst into lifeless flames. "I'm a fire user."

Leo stifled a gasp; Skye looked shocked. A sad expression entered his face. Leo willed his hands to set on fire. "Yeah. You're the last one..."

"Yep. My powers got too powerful. Just remember, just because you're dangerous, and you don't work well with life organisms doesn't mean you're alone. I did that. Remember that. Take it. The disk is yours. Say hello to Festus for me." His image began to flicker.

"Thank you." Leo whispered. The only person in the world that seemed to share his pain.

"You might think this is a curse, but it's also a gift. Good bye, brother," He smiled, then slightly frowned. "Just, be careful...girl...d-"

In a second, his whole vision was cut, and disappeared.

"What were you going to say?" Leo yelled, still holding on to disk. Someone shouted out from behind him.

Reyna. She had fallen down, tripping over the skeleton bones.

Tightening his grip on Skye and the disk, he raced to her and helped her up.

"Nico!"

The son of Hades cut short of his fight and ran to the demi-gods, sidestepping the beasts.

"Ready to go?"

"Now would be wonderful," Leo said.

Shaking his head, Nico grabbed onto everyone and merged into the darkness.