Good event, nice to get books in adventure loot.
Frustrating for lower levels to find they have to 'find x amount of granite' on Part 4 of Section 4 which means they cannot look for books until they manage this and can end up not finishing the chain unless they gem the quest. Getting the stuff on treasure search is totally random and to give that perspective on my Newfoundland account I managed it on the first search run whilst on Sandycove it took me almost 2 days. On my Northisle account all I had to do was 'gather x amount of saltpetre and that was done in seconds by a return trade.
More like this would be entertaining but please don't end up doing what so many games have done and end up with non-stop events.