The party leader can speak with Mistra regarding the Trial of Courage and Wisdom in order to teleport to the Knight's Jail instance. You are allowed one solo run of the dungeon, after which you will have to be in a party of at least 3 members. When you're ready, you will need to either join a party or create one yourself to enter the dungeon. Consider completing the God's Guide quest and some of the monster-killing tasks in the Sea of Atlantis before taking on the Knight's Jail.

The quest is hard to complete solo at level 20, so if you can't find a party you may want to wait until you are a higher level. You can be as low as level 20 to complete the quest, but you will not be able to use your mount until reaching level 25.

Shortly after arriving in the legendary City of Atlantis, your character can visit Knight Elder Mistra and accept the Manipulator quest to kill Hannibal. Within a few hours of creating a character, you will have the chance to liberate the Knight's Jail in a quest that will reward you with your first mount.Write the text of your article here! Battle of the Immortals offers its players a comprehensive and exciting mount system, and there is no need to wait until higher levels to start experimenting with it.

War of the immortals wiki