Discovering the heroes had followed them/Making a deal with the Storm King

Here is how the Overlord discovered the heroes followed them in The Overlord's Revenge.

Meanwhile, the Overlord, Lord Vortech and the Preeminent came to the Castle of Friendship.

The Overlord: We're finally here at the Castle of Friendship!

Lord Vortech: Let's see what we got here. Shall we?

Just as the Overlord witnessed the Crystal Map, he discovered that they were being followed.

The Overlord: What?! It can't be!

Lord Vortech: What is it, Overlord?

The Overlord: Those fools have followed us!

Lord Vortech: If they try to stop them, they'll ruin everything.

The Overlord: Impossible!

Then, the Overlord came up with the idea when he realized the Storm King's incident.

The Overlord: I have a better idea.

Lord Vortech: What kind of idea, Overlord?

The Overlord: The Storm King could use an alliance to grow.

Lord Vortech: You don't mean we're joining forces with the Storm King, do you?

The Overlord: That's the plan, Vortech.

Lord Vortech: Hmm, I like it.

The Overlord: (to himself) Those heroes think they can stop us? They are as annoying as they are troublesome. Well, two can play at this game.

So, they set off to find the Storm King.

Meanwhile, Tempest and Grubber returned to see the Storm King empty handed.

Tempest Shadow: We failed, my king.

Grubber: Instead of capturing the princesses, we've just got those dummies instead.

The Storm King: What? I don't tolerate failure, you two are no use to me anymore!

Tempest Shadow: But... you promised me to restore my horn.

Grubber: And the dough that we are making.

The Storm King: I don't want to see you two anymore. Now, get out of here!

Tempest Shadow: Anything we can do now, my king?

The Storm King: No. (pulls the lever to activate the trapdoor as Tempest and Grubber fell)

Tempest Shadow and Grubber: AAAAAAAAAAAAAAAAAHHHHHHHH!!!

The Storm King: (lets go the lever) Hmph! Losers, I'm surrounded by Losers! What'll I do now?!

Then, the Overlord and Lord Vortech came to see him.

Lord Vortech: Greetings, Storm King.

The Storm King: Who the heck are you guys?

The Overlord: I am called by many names, but you can call me Overlord.

Lord Vortech: And I am Lord Vortech, conquerer of the LEGO Dimensions.

The Storm King: What do you two want?

The Overlord: We have a plan that it'll be worth more power beyond alicorn magic.

The Storm King: (????) I'm listening.

Lord Vortech: If we help one another, we'll conquer not just Equestria but also the entire universe.

The Storm King: What do you have in mind?

The Overlord: Simple, Storm King. Listen carefully for what I have to tell you about my plan.

As he whispers in the Storm King's ear, he begins to like his idea.

The Storm King: That is truly evil.

Then, Lord Vortech, the Storm King and the Overlord laughed evilly together.