You've met him. He’s standing there in St. Frangelico Cathedral, looking like a misplaced aristocrat in a dog mask, promising you the world if you just hand over those rare Ergo chunks. Most players see Alidoro in Lies of P and think he’s just another eccentric merchant. A "Rare Ergo" vendor. A guy who helps you get those shiny boss weapons like the Seven-Coil Spring Sword or the Etiquette umbrella.
But honestly? He’s a total fraud.
If you haven't finished the game yet, buckle up. The guy you're talking to isn't even the real Alidoro. The lore of Krat is dense, messy, and frankly, a bit depressing, but the story of this specific NPC is one of the most cynical betrayals in the entire game. He isn't just a shopkeeper; he is a pivot point for your humanity and a massive piece of the puzzle regarding the fall of the Bastards.
Who is the "Alidoro" you actually meet?
The man wearing the Great Hound mask when you first encounter him is actually a nameless subordinate. An impostor. A thief.
The real Alidoro was a legendary treasure hunter. He had a reputation for finding the unfindable and, more importantly, he was a bit of a hero to the "Bastards"—a group of stalkers who didn't fit into the rigid class structures of Krat. The imposter was his assistant, or at least someone close enough to him to commit a cold-blooded murder. He killed the real Alidoro, stole his mask, stole his name, and started selling off the treasures the real man had spent a lifetime collecting.
Why does this matter for your playthrough? Because every time you trade a Boss Ergo to him, you aren't helping a legendary hunter. You’re feeding the greed of a murderer who is actively desecrating a legacy.
It’s easy to miss the signs early on. He acts high and mighty. He treats you with a sort of polished disdain that feels typical for Krat’s elite. But as the game progresses—specifically once you reach the Barren Swamp and later the Relic of Trismegistus—the mask literally and figuratively starts to slip.
Finding the real Alidoro’s legacy
You don't just find out he’s a fake because someone tells you. You find out because the world of Lies of P rewards players who actually read the item descriptions and pay attention to the environment.
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Later in the game, you'll encounter Eugénie’s questline. This is where the emotional weight of the Alidoro situation hits home. Eugénie, the talented young workshop technician at Hotel Krat, has a deep, almost familial connection to the name Alidoro. She thinks he’s her brother, or at least a protective figure from her past who sent her to Krat to keep her safe.
When you finally confront the fake Alidoro at the Relic of Trismegistus after the Black Rabbit Brotherhood fight, he’s done pretending. He’s tired. He’s arrogant. He basically tells you that the real Alidoro was a "fool" and that he deserved to die.
You have a choice here. You can kill him.
Most players do. And you should.
Killing him grants you Alidoro’s Cryptic Vessel. This is the smoking gun. You take this back to Venigni, he decodes it, and you learn the sickening truth: the real Alidoro was indeed Eugénie's brother. He died trying to protect the very legacy this fake is now auctioning off to the highest bidder.
The mechanical importance of the Alidoro quest
From a gameplay perspective, Alidoro is your gatekeeper to the best gear in the game. Without him—or his successor—you’re stuck with standard weapons.
- Boss Weapons: He trades the rare Ergo dropped by main bosses for unique weapons.
- Amulets: If you don't want the weapon, he offers powerful amulets that can define your build, like the Extreme Modification Amulet which boosts attack power based on how many Fable Slots are filled.
- The Replacement: If you kill him (which you have to do to finish Eugénie’s story properly), a new NPC named Rookie Explorer Hugo will eventually take over his shop duties at the Hotel. Don't worry about losing access to boss gear. Hugo is a fanboy of the real Alidoro and is much more pleasant to deal with anyway.
One thing people often mess up is the "Lie" system regarding Alidoro. When you first meet him, you can send him to Hotel Krat or to Venigni Works. If you’re hunting for the "Rise of P" ending, your choices here matter for your humanity points. Sending him to the "safe" Hotel is the "kind" choice, though he'll end up there eventually regardless of what you say.
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Why the Bastards hated him
The Bastards—stalkers like the Fox and the Black Cat—have a very complicated relationship with the concept of Alidoro. To them, he was supposed to be a symbol of hope. When they realize (or suspect) he’s changed, it adds to their desperation.
Krat is a city built on layers of deception. The Alidoro twist mirrors the larger narrative of the puppets and the Grand Covenant. Just as the puppets are masquerading as "servants" while being killing machines, the man in the hound mask is masquerading as a "hero" while being a vulture.
If you talk to the Fox and Cat throughout the game, their dialogue shifts. They are starving. They are dying of the Petrification Disease. They see Alidoro—this man with supposedly endless resources—and they see a way out. The fake Alidoro, however, has no intention of helping his "fellow" stalkers. He’s in it for himself.
The Eugénie connection: The heart of the story
The most "human" moment in Lies of P isn't the ending. It's what you tell Eugénie after you kill the fake Alidoro.
After Venigni decodes the Cryptic Vessel, you have the full story. You know the man she admired was a fraud. You know her real brother is dead. You go to her, and you have to choose:
- Tell her the fake Alidoro was just a talented, busy man (A Lie).
- Tell her he was her brother, but he was killed (The Truth).
- Tell her the real Alidoro was her brother, and he loved her (A variation of the truth/lie depending on your decoded info).
To get the Far East Princess record and the "Story of a Stranger Girl" achievement, you have to navigate this perfectly. You need to tell her the truth about her brother. It’s a gut-wrenching moment. She’s one of the few genuinely kind souls in the game, and you’re the one who has to break her heart. But it’s necessary for P to grow his own heart.
Actionable steps for your playthrough
If you're currently standing in front of Alidoro and wondering what to do, follow this path to ensure you don't miss any unique items or story beats.
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First, do not kill him immediately at the Relic of Trismegistus. Talk to him first. Exhaust his dialogue. Ensure you have traded any Boss Ergo you currently have, just in case, although Hugo will take over later. Once you’ve gotten everything you need, kill him. He deserves it, and he drops the Cryptic Vessel which is non-negotiable for the best lore completion.
Second, take that Vessel to Venigni immediately. Don't sit on it. Read the decrypted letter. It provides the context you need for the final conversation with Eugénie.
Third, be careful with the Fox and Cat. They will ask you for gold coin fruit. Giving it to them or refusing them impacts your relationship with the stalker faction, but it also colors how they talk about Alidoro. If you want the full picture of how the fake Alidoro ruined the reputation of the real one, keep them on your good side until the very end.
Lastly, pay attention to the mask. The Great Hound mask is a symbol of protection in the lore of the Bastards. Wearing it is supposed to mean you are a guardian of the discarded. The irony of a murderer wearing it while hiding in a cathedral or a swamp is the peak of the game's dark irony.
Lies of P is a game about what makes a human. Is it a heart? Is it a memory? Or is it the ability to feel guilt for a man you never even met? By the time you've finished the Alidoro questline, you'll realize that P—a puppet—has more honor than the man hiding behind the dog mask.
Once you’ve handed the decoded letter to Eugénie and received her reaction, check your gramophone. The record she gives you is a testament to the real Alidoro's memory. Listen to it. It’s one of the few ways to bring a small amount of peace back to the ruined streets of Krat.