I think it’s Lille.
The title refers to the anthem of John the Baptist.
In Lille we can find Jean-Baptiste Wicar. Same name. The Wicar Museum is now the ‘Palais des Beaux-Arts de Lille’.
Jean-Baptiste Wicar painted the work ‘Portrait of the First Republic’, placed: ‘Musée de la Révolutionilla française’. And this is located in a town called Vizille, which is part of the ‘Napoleonic Route’. N85.
Now we have a link to our hero Napoleon and with this a link to Clue 8.
We can go to the beginning of the ‘Napoleonic Route’ and shoot the arrow and use it to catch Dabo.