Overall, a fun event.
I, like most, didn't get all 8 books in either city, but I did get plenty of duplicates of all the other books. Overall, the books seemed to be more of a distraction than anything, do this, build that, gather, pay, a whole lot of busy work for very little actual rewards. With the number of duplicates I got, if I'm left hanging, it should have been to complete the second set, not hoping to complete the first one. Although nice, I'm not sure if the extra candies from the books were needed to get a level 9 Asylum, I got one in both cities, no diamonds needed. In some ways, I'm glad I never completed a full set, once I had a lavel 9 Asylum guaranteed, an additional large tool package would have only meant clearing more cobwebs to get more books to earn candy for more tools to find more books to earn more candy to find more books.
I liked the books and extra quests, but moving forward, books and side quests like the books would be a great way to restore Random Rewards to events. Next year I'd like to see two of the quests rewards in each book give 10 candies each, the others give Random Rewards. This could also allow an increase in the number of quests per book by two or 3 quests. Say 8 quests per book total. 2 quests give 10 candies each, 1 quest gives the final reward, leaving 5 quests giving Random Rewards. Each book would then allow diamonds to be earned once per quest, per book, like Recurring Quests do per age. Meaning, if the 3rd quest of the second book is a Random Reward and you hit diamonds the 4th time through the book, then that quest in that book will then switch to medals for all future runs of the book. Anyway, something to consider, I do miss Random Rewards in events since Historical Questlines disappeared.
As I said, overall a fun event. I easily ended with a level 9 Abandoned Asylum in both cities, got the remaining 4 upgrades each city needed to have a full Necropolis, plus I picked up 2 Dark Doorways in one city, 3 DDs in the other. All without diamonds. Makes it a good event in my book, even if I don't get the last one, in either city. Liked the books, please add Random Rewards next time.
For those who didn't get a level 9 Asylum just by completing all the event quests, I feel for you. However, there's clearly something YOU did wrong, Inno balanced this event just fine. Plenty of candy, plenty of tools. Instead of calling it 'rigged' and blaming your results on 'Inno just wanting diamonds', why don't you analyze how YOU executed the event to see where your error was so that YOU don't repeat it in this, or other events like it.
Chalk it up to the learning curve and learn, or blame Inno and suck at the event next year. I don't care, I'm not affected either way.