Start tedious

I was delighted to find the dynamic trio of Department V in 4th book
Having had the chance to read in the order the previous 3, I was enthusiastic and yet I almost discourage me because flashbacks 1987/2010 that muddled me, not seeing the link between subjects discussed while telling me that there was necessarily a future
10 chapters and hundreds of pages so that the 1987 events began to interest me is rather long and daunting but having learned to appreciate Adler Olsen I persisted (without regret !!)
However for a new player discovering, it can close the book and move next to this author, that is why for a time I did put that folder 3 stars because 64 is more tedious to read than previous and not advisable for a first purchase
FL