Anushka Roy’s Reviews > Up the Ladder > Status Update

I am so clueless, i feel like this book is a 3rd or 4th in a series and i need some back story, but I didn’t find any book related to some major characters, for example Gerry and his wife seem to have been main characters somewhere and I should already know about them, also the best friend seems to have her owm story, but where are they?