Treasure-Hunting Brothers is a side quest in Mario & Luigi: Brothership that can be started on Allsand Island after completing Conductor Island. Read on for a full walkthrough of Treasure-Hunting Brothers, including its location, unlock requirements, and rewards.

Treasure-Hunting Brothers Location and Unlock Requirements

Treasure-Hunting Brothers Side Quest
The brothers at Allsand Island know where the secret island is. Maybe you can find the legendary treasure?
Unlock Requirements	Complete Conductor Island
Quest Start Location	Allsand Island

Unlocked After Completing Conductor Island

After you complete Conductor Island, you will be able to find this side quest on Allsand Island. Talk to one of the treasure-hunting brothers by the flower bridge north of the island plaza in order to start Treasure-Hunting Brothers.

If this side quest doesn’t appear for you after you return to Shipshape Island from Conductor Island, you may need to progress the story a little bit.

Story Walkthrough

Complete Letter From a Drifting Island

You may need to complete the Letter from a Drifting Island side quest first before you can take on this Treasure-Hunting Brothers quest, since the treasure-hunting brothers in question are the same ones involved in Letter from a Drifting Island.

Letter from a Drifting Island

Treasure-Hunting Brothers Walkthrough

Treasure-Hunting Brothers Quest Objectives
Talk to the Brother at Allsand Island Take the Offering to Heatfreeze Island Return to the Brother at Allsand Island

Talk to the Treasure-Hunting Brother at Allsand Island

To start the Treasure-Hunting Brothers side quest, talk to one of the brothers at Allsand Island. Take the green warp pipe to get to the plaza, then head north. Watch out for the Shower Fish along the way!

You should be able to find the brother standing in front of the flower bridge.

Allsand Island Location Guide

Take the Offering to the Heatfreeze Island Statues

You need to give the treasure-hunting brother’s offering and wish(es) to the statues on Heatfreeze Island.

To get to the statues, head north and use the green warp pipe leading to the cave entrance. Enter the cave and head north, past the ice balls, and keep going until you reach the two statues.

Talk to the statues to give them the offering and relay the brother’s wishes.

Heatfreeze Island Location Guide

Return to the Brother at Allsand Island

Go back to the treasure-hunting brother on Allsand Island. He should still be near the flower bridge where you first fount him.

After a heart-warming, brotherly resolution to the quest, you will be given your reward as well as a hint for a new island.

Treasure-Hunting Brothers Rewards

Ultra Candy and Max Candy

Reward	Description
Ultra Candy x2	Restores HP and BP by 70%.
Max Candy x1	Restores HP and BP by 100%.

The treasure-hunting brothers will reward you with two pieces of Ultra Candy and one piece of Max Candy upon completing the quest.

How to Restore BP

Hidden Island: Teensi Islet

The brothers will also show you the location of a hidden island on your map. The island they show is Teensi Islet, where you can get a lot of coins as well as a Platinum Medallion.

Concordia Map

Mario & Luigi: Brothership Related Guides

All Side Quest Locations

Lushgreen Sea Side Quests

Color-Full Sea Side Quests

Brrrning Sea Side Quests

Gulchrock Sea Side Quests

Stormstar Sea