The Yervha is a trivia machine you can find, and challenge, in Deathloop.
It will ask you a variety of question - covering topics from the history of Black Reef to facts about the AEON program and its creation - and, to ensure you succeed, it's a good idea to know the Yerhva's answers.
First, however, you need to know the location of the Yerhva in Deathloop or you won't be able to complete the quiz.
On this page:
Yerhva location in Deathloop explained
To find the Yerhva in Deathloop, you must first complete the introductory missions - The Longest Day and Ubiquity. This will allow you to explore Black Reef and the loop freely (or at least as freely as you can in a time loop).
With these completed, you can visit the Yerhva in Karl's Bay at any point during the loop. The Yerhva is located in a building close to both entrances to the tunnels, so you don't even have to travel very far.
Depending on when you visit the Yerhva, however, there may be a couple of Eternalists in the building, so kill them to ensure you can safely complete the quiz.
Yerhva answers in Deathloop explained
The Yerhva in Deathloop will ask you nine questions, which will test your knowledge of both Black Reef, its history and AEON; while it will ask you these questions in a random order, the answers will always remain the same.
To answer the questions, you need to select the correct number button beneath the screen, so make sure you press them carefully. If you do, however, get a question wrong, you'll need to return to the Yerhva on another loop.
Below you can find both the questions and answers for the Yerhva's trivia quiz:
AEON graces this island as kaleidoscopic jewels upon the neck of the world's greatest beauty. What seeks the Program?
3 - The advancement of human potentiality and enlightenment
Before AEON's arrival, Blackreef slept in frozen utero, awaiting new purpose. Who then made landfall, reawakening her from slumber?
2 - Colt Vahn and Egor Serling, on a voyage of discovery
Blackreef boasts a bountiful feast for the senses. Which transcendent work towers above the island's myriad other artistic pursuits?
7 - The nose, chin, and eyes of Charlie Montague
Decades ago, warmongers toyed with the temporal tides eddying about Blackreef. Their sigil-marked temples stand still. What named their doomed enterprise?
3 - Operation Horizon
From what seed did AEON spring?
6 - The shared ambitions of Harriet Morse, Egor Serling and Dr. Wenjie Evans
Karl's Bay has worn many faces, most as lost to time as the mysterious Karl himself. What was its most recent incarnation prior to AEON's arrival?
3 - A military air base
Sink your toes into the dark earth and let the vibrations of her voice course through your bones. From whence did this island derive her name?
8 - Coastal coral formations
The Bay, the Rock, and labyrinthine Updaam wear AEON colors proudly, but that decor belies their history. From whence came the peculiar names that grace them?
5 - They date back to a lost fishing colony
The wriggling, writhing energies of the Loop have been harnessed to gift us with abilities beyond our biological potential. What birthed our trinkets and slabs?
7 - Dr. Wenjie Evans personally engineered each one
While there is no prize for successfully completing the Yerhva's quiz, doing so is a requirement for the achievement - A Charlie Montague Game.
Have fun completing the quiz!