Your first job is to head into the labratory research area of Mistmoore Castle to find a document saying Mayong Mistmoore has the Bloodmoon Gem. It's best to head to Mistmoore Catacombs then up to Mistmoore Castle through there.

Once you get to the Mistmoore Castle Basement from the catacombs face the Place Holder/Named Statue. Go to the left of him through the door way and up the stairs. At the hall way head left up the Stair Case into the prisoner area.

You will need to head to the back right prison room where there is a water tunnel. In the middle of it is a room where you will find the note to update your quest. The note must be harvested then read to obtain the update.

The first update you need for your mythical comes from Mayong Mistmoore in Mistmoore's Inner Sanctum. It's best to form a solid raid force to take this zone down quickly and proceed to the next update.

Unfortunately Mayong is where the easy updates end. Your next Target is the Leviathan in the Chamber of Destiny.

Your final update comes from the last mob in Veeshan's Peak (Phara Dar).