Many Civilians in Gotham had known the mystery of the Batman to be the Dark Knight, it was one of the darkest mysteries that was known in Gotham City.

They never knew whether they would fear him or cheer him as a Hero, some even think that he was an antihero of sorts. His intentions were unclear for most, and his identity was even more of a mystery. No one knew that it was Caleb Rivers underneath the suit and the mask In fact, no one had even seen him for a while except for you.

Ever since Alison Dilarentus who was wearing the Red Coat under the alias "A" had set the fire in Rosewood High, Caleb had went into hiding, knowing that he had found the Batcave that Bruce Wayne had left behind, it was beneath the underground tunnel which led between Rosewood and Gotham City, he knew that you were only allowed to enter the Batcave knowing that you were his friend that Caleb knew before the tragedy of the school fire and he wasn't able to lose you knowing he made a promise to never let you go.

Literally You knew you had to keep Caleb's identity a secret not letting anyone or anything know about his secret of being The Dark Knight, he replied to you placing his hand on you, "I know I trust you that you will keep my identity as the Batman a secret!" He smiled as he was hugging you knowing that Caleb trusted you with his life and everything had depended on you.