How do you join a battle in wizard101 when it is a solo quest?

In Wizard101, even if a quest is designated as a solo quest, you can still join a battle by inviting another player to assist you. To do this, simply click on their character and select the "Invite to Battle" option. However, be aware that if a player joins, the quest may change to allow for group play, which could affect your ability to complete the quest solo. If you prefer to complete it alone, just enter the battle without inviting anyone.