The End of the Rainbow

The End of the Rainbow is an overseer quest and part of the When Irish Eyes are Glowing multi-stage questline in Fallout Shelter.

Walkthrough
This quest takes place in a mine with a random layout with around seven floors. Enemies include radroaches, with the possibility of glowing radroaches, raiders, including raider leaders, and mole rats, possibly including mole rat broodmothers.

Around the middle of the mine is the secondary treasure trove, where three raiders can be spoken two. If the second dialogue option is chosen, a fight is avoided and a legendary junk is rewarded. Fighting them does not yield a legendary junk. A rare weapon and some caps can also be found in this room.

Near the bottom of the mine is a raider leader accompanied by two other raiders who can be spoken to. Regardless of what dialogue option is chosen, a fight will ensue. After they are defeated, the main treasure trove in this room can be accessed, which includes a lunchbox, and two bottles of Nuka-Cola Quantum.