Hi I've got a large number of explorers who have the max number of Hero Ore and Offbeat roads books with the intention of increasing my stock of titanium ore... are you aware these books simply are not working. Once again my explorers have returned from long searches as required by these books and NOT ONE has returned with titanium. Can someone sort this. Books take a lot of resources and time to make. I feel theyre just a complete waste of time and effort.