The Eternal Fire Source/Taking the Lava Lakes Railway

Here is how the search for the Eternal Fire Source begins in Rise of the Portal Masters.

Back at the Ruins, The Crucible of the Ages is being placed on the Core of Light.

Master Eon: The Crucible of the Ages, Made to withstand the terrible forces of the thousand burning suns.

With the Crucible in place, Hugo begins his search for the Eternal Fire Source.

Meanwhile at Kaos' Castle, He was even more upset with the Skylanders interface.

Kaos: Glumshanks!

Glumshanks: Yes, Lord Kaos?

Kaos: I have a job for you! Those cursed Skylanders, Ohh, And those big faker of the Portal Masters has interfered with my plan to become Emperor of Skylands for the last time! But you, Glumshanks, You can stop them!

Glumshanks: Me?

Kaos: See? Things are... Very bad for us right now.

Glumshanks: But I thought you said the Darkness was growing, That it didn't matter what they did. You said...

Kaos: Nevermind what I said! Look, Glumshanks. All we have to do is keep them from getting one, Just one of the Eternal Sources, And it'll be all over. Which raise me to you, Old friend. All you have to do is make your way deep underground sneak past the deadly lava guardians and withstand the scorching heat of a burning volcano to sabotage tracks of my train. (breathing deep) Meanwhile I'll go on ahead and simply go after the Eternal Fire Source myself. (laughs evilly) See? There's more than one way to derail their plans!

Glumshanks: Please tell me you didn't just say that.

Kaos: Oh, I did! (laughs evilly)

Back at the Ruins, Everyone was grateful Diggs was doing alright.

Percy: We're glad you're okay, Diggs.

Diggs: Thanks to you and your friends, Percy.

Spike: ???,.