Grievously

this story is about a girl named Sarah, and she's a huge fan of a band called 5 seconds of summer. when her brother tells her she can meet them because they're coming to his lab to help with a research (he's a scientist and does research about some kind of weird chemical substance) she's has to hide the fact that she's a fan. she doesn't care, as long as she has the opportunity to meet them. but when she finds out the ''weird substance'' is really important for some people, it's getting dangerous.. for her, and everyone she loves, including 5 seconds of summer.