They are left with 50 minutes till Medusa arrive.

Gyu Ri : We have to cross back to the other side of the river.

Kai : Right ! How about this . I’ll give you half of the water . You stay here and I’ll be on the other side.

Gyu Ri : Ok !

Kai : Be careful. I know you can do it.

As Kai gave a silver coin to Charon to cross back to the river , Gyu Ri was standing there silently but she feels like there’s someone watching her .

5 minutes left .                                                        

Gyu Ri : I guess Kai is already at the other side of the river. Hopefully our plan works.

Suddenly there was a loud sound , it sounded like Argos The Owl.

Argos : Majesty !!

Gyu Ri : Argos ! How did you cross that river ?!

Argos : Majesty Majesty ! Kai’s in trouble ! Medusa arrive 5 minutes ago !. She was early !

Gyu Ri : So it’s up to me then to save our friends !

Argos : I guess it is.

Gyu Ri : It’s time ...

Suddenly someone grabbed Gyu Ri’s shoulder and flew up high . It was Lay !

Gyu Ri : Lay ! What are you doing here ?!

Lay : Helping you guys ! Since I’m the only one who can travel back and fourth in the Underworld. Come , we have to save them.

Gyu Ri : What happened to Kai ?!

Lay : Unfortunately , he was turned into a stone… He didn’t make it. I got a plan … Here ! Put these flying shoes on … I got them from my dad …

Gyu Ri : I don’t know how to control them .

Lay : Don’t worry ! Even a amateur like you will be able to use them easily … Here’s my plan.

Gyu Ri and Lay flew to the entrance of the Underworld , when Gyu Ri reached at the entrance of the Underworld. She saw Medusa.

Medusa : Well well ! Where’s the head of the son of Perseus ?!

Gyu Ri : He’s dead Medusa ! So t