Rene the Shadow Knight

I couldn't read it properly before getting kicked out. It was a quest so I assume we can dig it out in the extractions. Brb.

 The Shadow Knight in Dragon's Nest

NOT COMPLETED:
The Maple Administrator says that there is some news you should know about. Click on the lightbulb over the Maple Administrator's head to hear the news!

IN PROGRESS:
The Maple Administrator says to go through the Dimensional Mirror to get to Dragon's Nest, where you will find Shadow Knight Rene.

COMPLETED:
You spoke to Shadow Knight Rene in Dragon's Nest. He told you about some eggs you can obtain from the Dragon's Nest.

 The Shadow Knight's Request for Help

NOT COMPLETED:
Shadow Knight Rene in Dragon's Nest needs your help. Go to Dragon's Nest via the Dimensional Mirror and talk to Shadow Knight Rene.

IN PROGRESS:
Shadow Knight Rene says that he is in need of a Twin Dragon's Egg and asks you to bring one back for him. You'll have to be quick before the mother dragon returns to the nest!

COMPLETED:
You've brought back a Twin Dragon's Egg for Shadow Knight Rene. He thanks you and tells you that you can gain precious treasures from the Twin Dragon's Egg by using a special Incubator [SIZE="7"]found in the Cash Shop[/SIZE].

Can we take a look into the possible rewards, or is it server-sided? I would assume this works the same way Box events did.