Cresselia and how to cure Sailor Eldritch's son???

To get Sailor Eldritch's son cured, you have to talk to him, and he'll sail you to Fullmoon Island. There's a Cresselia just above you. Talk to the Cresselia, and it'll fled, and you'll get a Lunar Wing. Give the Lunar Wing to his son, and his son should be cure. While Cresselia could be anywhere now. Use the Pokemon Marking Map app., and track down Cresselia to capture it. Cresselia should fled alot, so get a Pokemon that knows Mean Look, or get a Wobbofet.

Here is how to get the legendary Pokemon Cressalia, and how to cure the Sailor's son. Go to Canalave City when you are ready, and talk to the sailor. He will take you to Fullmoon Island where Cressalia resides. When you arrive on the Island, follow the path until you reach the area that Cressalia is in. When you try to battle Cressalia, it'll run away, and leave one of it's wings behind for you to give to the sailor. Return to Canalave City, give the feather to the sailor's son, and get ready to hunt for Cressalia. You should either have a Trapinch, or a Pokemon that knows mean look beofre you attempt to find Cressalia, because without these moves, it'll run away like a sissy.

After beating the Elite Four, go to Canalave City. Go to Sailor Eldritch's House on the left side. You should be able to go inside and talk to him. When you do, he will tell you to go to Fullmoon Island and get an item for him. Exit his house and talk to the sailor that takes you to Iron Island. He will also let you go to Fullmoon Island now. Go there and follow the simple path to Cresselia. Cresselia will run away like Mesprit and can be tracked with the Marking Map. She will also leave the item you need. Take it back to Sailor Eldritch's son and he will be healed.

Acgmindmaster12

Cressila is found out in the wild use marking map to find. To cure son go to the island with cressila on it to get the lunar wing then take it back to the sailors son and done

You have to talk to the sailor he will eventually tell you that he will bring you to fullmoon island talk to creeselia she will fly off take the lunar wing and give it to the sailor

Talk to Eldrich and then ta:k to his wife and son. Go back out and talk to him again. He'll take you to Fullmoon Island. Go down the path and talk to Cressilia. It will run, and drop a Lunar Wing. Take that back to Eldrich's son. Then check your Marking Map Poketch app. Cressilia will appear like Mesprit, so use that to track it down.

Here is how to get the legendary Pokemon Cressalia, and how to cure the Sailor's son. Go to Canalave City when you are ready, and talk to the sailor. He will take you to Fullmoon Island where Cressalia resides. When you arrive on the Island, follow the path until you reach the area that Cressalia is in. When you try to battle Cressalia, it'll run away, and leave one of it's wings behind for you to give to the sailor. Return to Canalave City, give the feather to the sailor's son, and get ready to hunt for Cressalia. You should either have a Trapinch, or a Pokemon that knows mean look beofre you attempt to find Cressalia, because without these moves, it'll run away like a sissy.