The Gardener of Men

Walkthrough
After The Path of Knowledge, Neloth and the Dragonborn will finally have attained the Black Book: Epistolary Acumen. Neloth is actually excited wanting the Dragonborn to read it.

Read the Black Book
So bravely the Dragonborn reads the Black Book, and is transported to a part of Apocrypha.

Learn the hidden knowledge of "Epistolary Acumen"
Explore the book. An encounter with Hermaeus Mora as always is nebulous, to then learn the second word of the Bend Will shout from a word wall.

Exit the book and return to the Nchardak Reading Room. Neloth will be very interested about the excursion: basically Hermaeus Mora wants the "secrets of the Skaal", and will only then give the last word of the Bend Will to the Dragonborn. And only the Skaal Village shaman Storn Crag-Strider, the keeper of the knowledge, will be able to help.

Talk to Storn
Storn is quite willing to share the "secrets of the Skaal", since there apparently does not seem to be any other way for the Dragonborn to defeat Miraak, and since such a day was foretold.

Wait for Storn to read the book
So Storn braces daughter Frea for the moment, and so reads the book and to pass along the secrets to Hermaeus Mora. This kills the old man, tragically making Frea the new shaman of the village. But Mora keeps his word, granting the last word of the Bend Will shout.

The Dragonborn can now face Miraak in At the Summit of Apocrypha.

Der Waldmensch