In Honkai: Star Rail Letter to a Dim Star is an adventure mission in which you will need to help Rocky by collecting old parts, repairing the relay, and examining the records. At the end, you will have to decide whether to tell Rocky the truth or lie. You will also be able to unlock the “Diamond and Rust” achievement. If you're having trouble getting and completing this quest, check out our guide.
Letter to a Dim Star Mission
How to start the quest
- Required Mastery Level: 13
After completing the development mission “The Long Wait for the Edge of the Blade”, if you meet the required level of development, then you will have to write to Rocky, who will inquire about the well-being of a certain Leslie.
The guy will not answer who Leslie is, so you decide to visit him. Head to the Main Control Area at the Hertha Space Station and look for the boy on the left side of the room. Talk to him.
Find the relay and collect the old parts
Travel to the first floor of the Storage Area, and then head east to the control room and examine the highlighted computer.
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Next, you will need to collect two old parts. If you've been here before when looking for an access card for a triple authentication door, you can simply follow the existing bridges to the first item (you don't have to fight the enemies). Here, interact with the device to create an orange bridge. Walk over it and get the second piece.
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Examine the notes and go to the Observation Room
Now return to the repeater and repair it. Select the “Inspect” option again to examine the records. Select the second page and click on the first option, and then on the second. No response.
Now head to the Observation Room in the Base Zone. You will be able to open this area when completing the adventure mission “Rebirth Road”. Interact with the computer, go to the next page, and select the Elimination Area option.
How to identify the criminal
Travel to the Main Control Zone and go to the area marked in yellow . Find Bernard near the dimensional anchor and talk to him. He will tell you the whole truth.
Tell Rocky the truth or lie
Now you will have to decide whether to tell the young man the truth about Leslie's response or lie to him. Just note that the reward from your choice will not change. He also will not affect the main storyline in any way, but the fate of Rocky will depend on him.
- If you give the guy the red magazine, he too will confess his love for Leslie and swear to be with her, saying that she will leave the station, despite all the problems with time travel.
- If you give the blue magazine to the guy, he will get very upset and tear up all his poems except for one. At the same time, Rocky will remain at the station and continue his research.
So, in any case, you will receive 250 development experience, 40 star jade, 12 thousand credits, 12 rarefied ethers and 50 hertariums. Even though the quest ends, Rocky's story continues.
How to get the “Diamond and Rust” achievement
After completing the quest, go to Bernard, who is still standing on the bridge, and give him the magazine you have left. Talk to him for a bit, and after the dialogue ends, you will receive the Diamond and Rust achievement.
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You can then move to another location and come back. Enter into a dialogue with Bernard again to find out about Rocky's fate. If he decided to go after Leslie, then the mentor will call him a “stupid boy” who does not even write to him. At the same time, his vital signs will be in order. Most likely, he has already entered the “gorge”, which is why his messages go here too slowly.
