The quest will start after the end of the first part of Open Sesame! quest. In this task you must recruit one person who will be the burglar during the robbery. You can choose between Eveline Gallo and Hugo Hoff.
Eveline can be found near the Vegelbud Residence (M1,18). However, before she agrees to go with you, you must help her in the performance or offer money for the ticket refund - 600 crowns (400 if you decide at the beginning that you prefer to talk only with her). In the second case you can continue immediately.
If you want to participate in the performance, you will have to shoot fruits from the limbs of a man with the crossbow. Luckily, nothing bad will happen if you miss. This will allow you to obtain a member of the robbery with no trouble or risk of failure.
Interesting fact: The merchant found among the participants of the show is a Gwent player and you can obtain a new card from him if you win. He also has 3 other cards for sell.
As you will learn, Hugo cannot join your party. When you will walk close to his house in Oxenfurt, he won't be inside and you will find some blood trail.
The trail will lead you near the river where you will face three thugs. From the letter found near one of them you will learn that the only place where you can look for Hugo is at the bottom of the river. His body will be tied with a rope to the bottom of the river. Sadly, there is no way to save him, so you will end this phase of the quest at this point and will be forced to recruit Eveline.