Just a little intro to the main characters of this book :). 

Mark (Male Protagonist). Nicknames: Markie, Markaroo, M&M, Book-Burner etc.

Tanni (Female protagonist). Nicknames: Nini, Rue, Arsonist.

Nico. (Side Character). Nicknames: Picasso.

Amira. (Side character). Nicknames: Ami, Mimi, Princess, Queenie.

Harper (side character). Nicknames: Perri, Harpie.

I hope you love these characters as much as I do! Happy reading <33.