To catch the bandit from Neuhof, Henry must take on the role of a humble Benedictine monk leading a measured life in the monastery. This guide for Kingdom Come: Deliverance will help you find the Pious and leave the monastery walls unscathed.
Due to the nature of the quest, it is difficult to give instructions without mentioning things that could be considered spoilers. Keep this in mind.
The quest can be completed in different ways. But due to the restrictions imposed on the monastic lifestyle, it will be difficult in any case. The walkthrough described in this guide will cause you to fail the side quest Bad Habits. If you want to complete it, stay in the monastery for a few more days.
Talk to Antonius to start the quest. You can agree to a small tour of the monastery. After that, talk to Antonius again. Say that you have tracked down the criminal hiding in the monastery. He will ask what the fate of this person is. Answer that the bandit will be killed. Now you need to follow the monastery schedule until mealtime. After a few bites, Henry will lose consciousness due to the poison in the food.
When Henry comes to, Antonius will come to him. He will confess that he is the very bandit and will propose a deal.
Since you both are effectively trapped in the monastery, he suggests planning an escape. To execute the plan, you need to get the keys and goat blood. Agree to participate in this adventure.
After the conversation, follow the schedule until night. While everyone is asleep, sneak into the kitchen. In the room designated for meals, you will find a shopping list. Add goat blood to it.
Then you need to get to the warehouse. Find the food shelf. To the right of it should be the monastery key. You need to take it.
Then return to bed. Sleep until the mass begins. Go downstairs and wait in the church for two hours until it's time for breakfast.
Now go to the dining room. Enter the room where you previously found the shopping list. On the table, there should be a container with goat blood.
Return to the dining room to eat.
It's time to show yourself as a disciplined novice. If you break the monastery rules, one of the senior monks may confiscate any items you shouldn't possess. Unfortunately, these items include the key and blood.
Finish eating with everyone else. Then talk to Antonius in the corridor. Tell him that you have obtained everything needed. He will suggest meeting in the dormitory after the evening mass (6 PM).
You will have to work during the day to avoid trouble. If you have problems with the monastery schedule, or you don't remember where to go, open the quest log and find the current quest. A marker on the map will point to the activity you need to do now.
First, you will need to do alchemy. Brother Nevlas will ask you to create some basic potions. Use the books to find the necessary recipes.
After working, go to the library upstairs and talk to the librarian. He will ask you to transcribe some Latin texts. Then wait until everyone goes to the dining room at 4 PM. After 6 PM, go to meet Antonius in the bedroom upstairs. He is waiting on the balcony.
When you meet Antonius, a cutscene will begin. After the preparations, you will be able to leave the monastery. Antonius will decide to talk to Henry.
Now you can either let him go or take him for interrogation. If you try to detain him, a fistfight will start. After the fight, you will go with him to Rattay. The quest will end.