Lifting the Shroud

Walkthrough
When talking to Wilhelm the owner of the Vilemyr Inn in Ivarstead, he may complain that the nearby Shroud Hearth Barrow is haunted. The Dragonborn can offer to look into the matter. Apparently another adventurer, Wyndelius Gatharian, investigated the barrow, and was never heard of again.

Investigate Shroud Hearth Barrow
Investigate the Shroud Hearth Barrow, and track down whatever is haunting the place, and overcome the various traps.

Bring Wyndelius's Journal to Wilhelm
As it turns out Wyndelius Gatharian was actually using the Philter of the Phantom to scare off any other adventurers, to let him search the crypt at his leisure. Whatever he was looking for, he did not find it.

Pick up Wyndelius's Journal from a nearby table and bring it to Wilhelm, who will reward the Dragonborn with the Sapphire Dragon Claw. Ironic, since Wyndelius was looking for precisely this claw.

Tip: Be sure to return to the barrow with the claw and open the stone door to explore the rest of the barrow. Yields a word wall for the shout Kyne's Peace.

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