I noticed that the quests in the Lorebook show if there is a prerequisite quest so you can follow the chain backwards. I would suggest that there needs to be a "Leads To" listing under that so you can follow the chain forward as well.
eg. Tell Bounder Chubb
lists "Daffodil is Missing" under Prerequisite Quests
should list "The Dwarves of Needlehole" under Leads To