Jhelom is a island to the south-west of Trinsic (be careful or you might get into a fight or two.) Once you get to Jhelom talk to Master DeSenel about the dagger you found (you may need to wait a wile he might be busy.) Once you tell him about it he will offer a demonstration. Don't accept it unless you want to kill him because he will attack you. Talk to the mayor and ask him where Eliz. and Abe. went. Looks like we are going back to Britain.