Hello, I am currently unable to re enter the dark realm. 

 

I have defeated Horon without a faint. I did not receive the Halloween Rapidash mount. Nor am I able to re enter the dark realm.

 

Not sure what else is needed. I have found out this is a know  bug. 

Hi @DevWee

Sorry for the caused inconvenience.

 

Are you able to enter Alucard's Castle? If so, are you able to see Alucard at Alucard's Castle 3F?

 

Looking forward to your reply.

Yes, I am able to enter the castle. And Alucard, Master of Deception is there. But when i battle him and win he just sends me back to the Pokecenter in an infinite loop.

 

Hi @DevWee

You will need a Pokemon that has learned the move Miracle Eye in your part in order to progress further.

Some common Pokemon that can learn Miracle Eye is Natu or Abra.

 

I hope that helped you. Please let me know if you were able to progress.

Looking forward to your reply.