A Bird in The Hand

After completing It’s in The Stars, wait for owl mail from Poppy Sweeting.

Travel to Brocburrow and fly to Poppy using your broom.

Approach the area ahead to find Dorran and the Moonstone puzzle.

Place the moonstone in the center stone.

Use Accio on the puzzle stones to align their shadows with the markings on the sealed door. Position the first pillar on the second right circle from the middle and the second on the third circle from the middle near the top.

Enter The Gilded Perch through the opened door.

Equip Incendio or Confringo to burn away vines blocking your path.

Proceed deeper into The Gilded Perch until you find a cube puzzle.

Locate the first cube on a shelf to your right and the second cube on a ledge to your left. Use Revelio to help find them as they glow blue.

Use Wingardium Leviosa on a box across from the ledge to climb up and reach the second cube.

Use Accio to drag both cubes onto their pedestals.

Activate the right cube by casting a fire spell (Incendio or Confringo) on it.

Activate the left cube by casting Glacius on it.

Proceed through the next opened door.

Defeat the Poachers that spawn. Centaurs will join the battle to assist you and Poppy.

Go to the area where the Snidgets are located to conclude the quest.

Leave the dungeon and wait for Poppy's final owl mail to arrive.