Mastering the Trade Secret in Fallout 76: A Quest Guide

Let's start by seeing together how to access this “Trade Secret” quest on Fallout 76. The important thing to understand is that it all starts in a previous quest, the one named “Supervisor, supervisor” and which is part of the main quests.

In the latter, you will have the choice to talk about Vault 79 at the end. If you want to have access to the “Trade Secret” quest, do so. In addition, to be able to progress in the rest of this quest, also make sure you have completed the side quest “The Master Lode”. The first stop on our adventure will then be near the Hornwright Industrial headquarters!

Exploring Hornwright Industrials

Once there, go behind reception and take the elevator behind to reach the management floor. Then take the elevator to reach the lower level. There, use the terminal and select the “Start correction sequence” option.

Then, return to the management floor to get your hands on the key allowing you to gain access to the Hornwright property. The latter is on the director's desk. Once in your possession, you will have to go to this property which has been indicated to you below.

Search Hornwright Manor and speak with Penelope

Once there, use the elevator which will take you to the emergency shelter. Then use the card reader, which will update your objective. Go up to the top floor of the property to use the terminal there and read the first entry.

You will then have to collect three items: the answer card on the bar, the newspaper on the wheelchair and the message on the terrace. Then return to the terminal and choose the “secondary code” option. Choose “30448” and then use the printer to obtain a magnetic card.

You will have to use this card with the reader you met at the start of the mansion. You will then come across Penelope Hornwright. Talk to him and leave for Summerville (marked in red below). In the basement of the house, collect the plan for the experimental Pip-Boy.

Then go to Vault-Tec University (indicated in blue), go through the shelter there and take the Pip-Boy construction kit. Then bring these two elements back to Penelope within the manor. You will then have to go up to the top floor to interact with the planewhich allows you to obtain an altimeter chip.

Fight against the Brainbot

Then head to the regional line NCA98 (shown in red below). There you will find an Eyebot that you will have to eliminate to recover its sensor module. Once it's done, This time it is at the Robco research center (indicated in blue) that you will have to go.

On site, you will find a Cerebrobot that you will have to destroy to recover an interpolator. Once you have collected these two elements, you will have understood, you will have to return to Penelope at Hornwright Manor.

Finally, the last step of this quest which will have taken you quite a bit through the Wastelands going to be going back to see Paige at Foundation. You will then be able to close it and you will gain a “Paint for Pip-Boy 2000 Mk VII” plan as a reward.