- Arrive at the quest location only to be attacked again
- Defend yourself and kill the attacking rogues
- Pick up the note that proves their connection to DeElficis
After finishing Attack!, continue west out of Griffinborough. Follow the road when it turns north towards Skook's Corner. On a bridge just a little north of that, you will be ambushed by assassins and brigands. Kill them and you will find a Document implicating the DeElfici family in these attacks.