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Secret Doctor

Last updated 2025-04-02

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The Secret Doctor is a NPC found within Hollow Zero. He is a doctor who appears in the Abandoned Skyscraper and Withered Garden Zone, who provides various support services for the player, though he provides more help the more injuries the squad has.

General

Abandoned Skyscraper

Upon starting a mission, the Secret Doctor will ask to draw blood from your starting Agent, giving a choice of drawing a small amount of health (19% of Agent's Max HP) in exchange for 1 Concentrated Medicine, or a large amount of health for 3 Concentrated Medicine, and he will also give the player a random A-Rank (Shield) Resonium.

On the first Frontline Outpost, the Secret Doctor will greet players at the entrance, and will give 1 - 3 Concentrated Medicines depending on how heavily injured the squad's Agents are. Afterwards he will provide 2 Service requests, where each request can have the following combination of possible rewards available:

  • Set 1
    • Light purification: Clears 50 Pressure.
    • Deep purification: Clears all Pressure at the cost of 2 Concentrated Medicine.
  • Set 2
    • Obtain normal supplies: Obtain 1 B-Rank Resonium
    • Obtain rare supplies: Lose 20% HP. Obtain 1 S-Rank Resonium.
  • Set 3
    • Simple Recovery: Heal 10% HP
    • Powerful Recovery: Recover all HP at the cost of 5 Concentrated Medicine.
  • Set 4
    • Explore a route: This area will no longer show any locations as Unknown.
    • Explore for supplies: There are more Unknown areas, which will produce even more Resonia.
    • Buy supplies directly: Lose 20% HP. Obtain 2 Resonia.

On the second Frontline Outpost, the Secret Doctor will also give 1 - 3 Concentrated Medicines based on squad injuries as before, and then offer players the choice of spending 2 Concentrated Medicine to catalyze the (Research) Trigger Instinct Resonium. Afterwards he will provide another 2 Service requests, with each request having the following possible available options:

  • Set 1
    • Catalyze a little: Catalyze 1 Resonium.
    • Catalyze a lot: Use 2 Concentrated Medicines, Catalyze 3 Resonia.
    • Catalyze all: Use 10 Concentrated Medicines, Catalyze all Resonia.
  • Set 2
    • Explore a route: This area will no longer show any locations as Unknown.
    • Explore for supplies: There are more Unknown areas, which will produce even more Resonia.
    • Buy supplies directly: Lose 20% HP. Obtain 2 Resonia.
  • Set 3
    • Mild catalyst: Catalyze 1 Resonium.
    • Take supplies directly: Obtain 1 Resonium.
    • Take catalytic supplies: Lose 2 Concentrated Medicines. Obtain 1 catalyzed Resonium.
  • Set 4
    • Take the small bag: Obtain 500 Gear Coins.
    • Take the big bag: Lose 15% HP. Obtain 500-2,000 Gear Coins.

Withering Garden

The Secret Doctor appears alongside the Masked Scholar and The Opportunist in the Withering Garden, greeting players at the start of the mission and at the entrance of the three Frontline Outposts. He represents the side that deals with health-related supplies and penalties.

Other Languages

LanguageOfficial Name
EnglishSecret Doctor
Chinese
(Simplified)
「秘医」
Chinese
(Traditional)
「秘醫」
Japanese「闇医者」
"Yamiisha"
Korean「수수께끼의 의사」
"Susukkekkiui Uisa"
SpanishMédico clandestino
FrenchMédecin clandestin
RussianТайный доктор
Taynyy doktor
Thai"หมอลึกลับ"
Vietnamese"Bác Sĩ Bí Ẩn"
GermanGeheimarzt
IndonesianDokter Misterius
PortugueseMédico Clandestino

Change History