Sylvia listened to Duke Erod. She wouldn't even dream of selling the medallion to some merchant if it had this much importance. She nodded at the instructions, and she answered "Understood," She place the medallion around her neck, with the medallion itself hidden under her shirt. She then stood and she told Chief Arduo, "Well, I better go and finish my preparations before I head out of Cassari. Thank you for the tea, and for listening," 

After saying her respectful goodbye, she headed out of the Chief's house and heads back into Cassari. She still needed a bedroll and maybe some food for on the road. Plus, she needed to check and see if Pylia was done with the potions of healing.