Osvald Ch.3 Conning Creek - Revenge continue

Chapter 3 (Conning Creek) continues with Osvald's story and gives us more info on the conspiracy that caused his family to be killed and him being imprisoned in that accursed island. Captain Stenvar helped Harvey to kill Osvald's family, put the fault on Osvald and then steal his research to send it to Montvale. He even killed the husband of Lady Clarissa (the assistant of Osvald) to silence him as he was snooping around.
Clarissa said that revenge brings to nothing, but well...revenge is going to be served one way or another and I'm happy with that. Osvald is not going to stop at anything from the looks of it.

Apparently Montwise is an important city because it's where Osvald and Harvey first met. Osvald seems to suspect that Harvey left the trail for him to find so he knew that the prison wouldn't stop him from coming back, but why? It doesn't make sense to lead the way to someone who want to take revenge on you unless...there's something else...