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Players need four days to unlock the Truthful Trailblazer or Hidden Harmony secret achievements inHonkai: Star Rail. These hidden achievements are mutually exclusive and missable without some quick thinking and backtracking. Both achievements are also only unlockable after completing the multi-stage questline,Todd Riordan’s Academic Research.
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This three-stage, four-dayHonkai: Star Railquest tree unlocksafter reaching Trailblaze Level 34 or above. Players must alsocompleteA Dragon Gallant, Its Ocean Distant, the second part of the Trailblaze Mission, Topclouded Towerthrust. The quest tree itself can end in two distinct ways, with one skipping a short section in favor of decisive action.
Glimpsing the Verdant Apothecary’s Pouch
The first part of Todd’s questline involves retrievingtwo Compendium of Remediesfrom the Alchemy Commission. Trailblazers are automatically whisked back to Todd, then requested to find a component froma mara-struck creature. They can acquire one after a fight with a disguised disciple of Sanctus Medicus at the Alchemy Commission.
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After activating the quest by talking to Todd in Central Starskiff Haven, Trailblazers should teleport to the Healer’s Market in the Alchemy Commission. They must speak to the NPC, Yuluo, who can be found beside the Dragon Tree in the middle of the market.
Gather The Books
After talking to Yuluo, players can find two copies of the Compendium of Remedies nearby.
Whichever order the player retrieves them, they will be teleported to Todd immediately after picking up both books.
Find The Learned Alchemist
Once Todd’s dialogue is finished, players should teleport back tothe Healer’s Market. The green-robed Learned Alchemist can be found behind the Dragon Tree. Winning the fight that follows will reward players with anEerie Twig, which must be brought back to Todd to finish this mission.
The Three Draconic Transformations
Todd will message the Trailblazer after one daily reset. This is the lengthiest section of the four-day quest, as players must possibly fight toclear puzzle areas. Players must also solve multiple visual puzzles that could be difficult to clear without a guide.
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After Todd sends the message, players should meet him at his usual spot in Central Starskiff Haven. He will ask the Trailblazer to take pictures of some landmarks in Scalegorge Waterscape.
Scalegorge Picture Locations
Upon receiving the pictures, Todd will make another request. The Trailblazer will be asked to find invisible rubbings left by hisIntelligentsia Guild mentor, Bernini Serrano. Scholar Bernini’s first set of invisible rubbings or Optical Markings can be found at the Alchemy Commission.
Find The Rubbings At The Alchemy Commission
Discover The Optical Markings At Scalegorge Waterscape
Although the Trailblazer does not recognize them, eagle-eyed players may remember them as The High-Cloud Quintet. Clockwise from the top, they are:
Xianzhou native
Xianzhou Zhuming (Outsider, settled in)
Short-lived species
Tour Scalegorge Waterscape With Todd
Continued
Continuedtakes two days to complete. On the first day, players can choose whether to keep Todd’s secret or report him to the Ten-Lords Commission. The choice won’t change Todd’s ultimate fate but will affect his final moments.
Keep It A Secret
How to Unlock Truthful Trailblazer / Hidden Harmony
Lastly, to unlockthe hidden achievements, head back to Todd’s spot. In his place is Cleo, one of his many disciples. Players can unlockTruthful Trailblazerby telling her the truth about Todd.Hidden Harmonyis unlocked by keeping Todd’s secret.
Honkai: Star Railis available for mobile, PS5 and PC.