In Memoriam is a side quest in Dragon Age: The Veilguard that involves murders, demons, and some good old-fashioned detective work. This optional quest becomes available immediately after completing Shadows of Minrathous, a short story quest that takes place in Dock Town.

The Veilguard is none other than Rook, a mysterious individual who has been recruited by Varric (alongside Scout Harding and Neve Gallus) to stop Solas on his tracks. The protagonist of the story has many important features,

This isn't the hardest sidequest in the Crossroads of Dragon Age: The Veilguard, but it shows an important moment of Solas' past.