Where to get quest gobblestone castle wizard 101?

In Wizard101, you can find Gobblestone Castle by traveling to the world of Marleybone. The quest to access Gobblestone Castle is typically given by a character in the Marleybone area, often requiring you to complete previous quests in the storyline. Once you have the quest, you can enter the castle to continue your adventure. Make sure to check with NPCs in Marleybone for specific quest details and requirements.