You will need to go where the Star Lake Ampitheater is for this next quest. Before going on stage you will need to click your Extra Action Button ([spell=323723])in order to disguise yourself as a tree. Once you are disguised with [spell=323723] you will see npc's on the stage that have the "Stealth Detector" radius and icon. Be careful not to get in their radius or they will see you. You will then go to where each spotlight is on the stage. After going to both spotlights you will head to the backstage area and on your left will be [object=341814].
Once you have looted the object [npc=162679] decides you need to pull a prank. So you will head to the opposite platform where [npc=165736] is located and then pick any of the three options. After doing that then you will turn in for the next part.
Note #1: You can use all your abilities while disguised including movement boosting.
Note #2: If a Night Fae has summoned the rare you can still attack the rare while disguised and even loot it.
Note #3: If you still have the [spell=323723] (tree disguise) applied then in order to get rid of the tree disguise you will have to right-click the debuff off.
Coordinate Locations for TomTom/Paste:
/way #1565 41.26, 45.18 Star Lake Ampitheater
/way #1565 41.36, 43.97 Spotlight #1
/way #1565 40.95, 44.42 Spotlight #2
/way #1565 40.90, 43.47 Backstage Entrance
/way #1565 40.27, 43.47 Wreath of Night's Veil Flowers
/way #1565 41.25, 42.74 Lady Moonberry's Soap