Below is a walkthrough on how to obtain the Lost and Found trophy in the Voice of Cards: The Forsaken Maiden.
As you explore the West Isle, be on the lookout for an event involving a drawstring bag with a necklace. We receive this event on the card shown below!
Select to “Let Laty Wear It” to obtain the Simple Necklace. After you have the necklace, travel a short ways for another event to trigger. A thief will want the necklace back! We receive this event on the card shown below!
You’ll be forced into a fight with the thief that has 26 HP. Defeat him. Afterwards, the thief will tell you that he regrets what he did and wants to return the stolen necklace to the shop he took it from. Hand over the necklace to receive the Dingy Charm. Afterwards, travel to the Accessory Shop in Heroes’ Dominion to learn that the thief did indeed return the necklace and now has a job at the shop. You’ll return the Dingy Charm to him and learn that he only stole to feed his child. As a reward, the shopkeeper will give you a Gemstone Ring! You’ll also receive the Lost and Found trophy!