If you're reading these words, that means you have solved my riddle, for which you have my congratulations. It also means you have not yet been caught and are still in Novigrad - which worries me greatly. I do not know exactly what you did on Temple Isle, but Menge is furious and will not rest until he captures you, skins you alive and burns you at the stake. And now that he's got his sanctimonious paws on Dijkstra's treasure, he can hire enough men to search every home in the city thrice over. I am a doppler, so I will be able to hide... But you, you must flee. While you still can.
P.S. Don't even think about trying to break Dandelion free from Menge's clutches - it's impossible. But knowing our friend, he'll wriggle his way out somehow. Or at least I hope he will.
P.P.S. Forgive me for not writing how to contact me, but a) you are to flee, remember? b) Melitele guards those who guard themselves.