They will not realize that the temple is inhabited by a family of demonic monkeys who wants to devour them. As the game is an endless running game, there is no end to the temple; the player plays until the character collides into a large obstacle, falls into the water, or is overtaken by the demon monkeys.
Once your character is at level 45, you will receive an invitation from the guild in your inbox. The invitation will start you on a quest which will unlock Undaunted Pledges. Pledges are daily quests which task you with defeating certain bosses within a unique dungeon.
For successfully completing a heist, you can earn gold, experience, Thieves Guild reputation, and containers of valuable goods that can be sold or kept for the Covetous Countess" quests.