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Ancestor's Drill Bit is an Adventure Mission in Honkai: Star Rail. Check out how to unlock this mission, its walkthrough, rewards for completion, and all choices in this guide!
| Previous Mission | Next Mission |
|---|---|
| Out of Control | When Business Comes Knocking |
List of Contents
| Mission Type | Adventure Mission |
|---|---|
| Location | Jarilo-VI, Administrative District |
| Required Level | 24 |
| Client | Serval |
| How to Unlock |
Reach Trailblaze Level 24 or above
Complete
Out of Control
|
|---|

Ancestor's Drill Bit can be unlocked once you reach Trailblaze Level 24 or above and have completed Out of Control mission.
| Quest Walkthrough | |
|---|---|
| 1 | To begin the quest, answer the message from Serval. Once you arrive at Serval's Workshop, they are bickering about opening an heirloom box from Molly's family. |
| 2 | You and Serval get the idea to open the box with a special key. To help, you ask the aid of Pela. Go to the bookstore to find Pela. |
| 3 | The clerk will tell us that Pela just left to get some money. Once Pela arrives, return to the workshop. |
| 4 | Pela will then decipher the clues needed to open the box. She will then invite you to an Exploratory Excursion. Check out the list of enemies in this Exploratory Excursion here! ▼ |
| 5 | ![]() Use the Home-Use Object Finder to search for clues. The first clue will have you stomp on a tile near a gate. |
| 6 | ![]() The next clue is found on top of crates right beside an arch. |
| 7 | ![]() You will see a diversion in the paths. You and Pela will split up to find the last clue. The last clue is near a flight of stairs. Use the Home-use Object Finder to look for the final clue. |
| 8 | Meet Pela at the bridge. The bridge's control terminal will be disabled. Unlock the control terminal by rotating it clockwise → counterclockwise → clockwise. |
| 9 | Rotate the bridge counterclockwise two times in order to get to where Pela is. She will tell you that monsters are guarding the key that they are looking for. |
| 10 | Go to the monsters who are guarding the key. Defeat them to finish the Exploratory Excursion. |
| 11 | Return to Serval's Workshop with the key. Talk to Molly to finish the quest. |
| Enemies | Weaknesses |
|---|---|
| Mission Rewards | ||
|---|---|---|
Trailblaze EXP
x350 |
Stellar Jade
x60 |
Condensed Aether
x5 |
Shield
x200 |
Credit
x25000 |
|
| Exploratory Excursion: Ancestor's Drill Bit Rewards | ||
|---|---|---|
Adventure Log
x2 |
Condensed Aether
x2 |
Credit
x3000 |
Musketeer's Wild Wheat Coarse Leather Gloves x1 |
||

All Missions and Mission Types
Ancestor's Drill Bit Mission Guide



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