After the initial scene once you arrive in Frostback Basin, speak with Professor Kenric to advance the quest. You will find him in a small house to the south west. There are a few notes, books, and sacks of loot scattered around along the way. After your conversation with Kenric this part of the quest will complete, but not before he informs you about one of his assistants, Colette, who is investigating Tevinter ruins to the north. This leads to the side quest Worthy of Publication.
Tip: Before you proceed with the main and side quests, you will find a Fade Rift to the north west. This can be a particularly difficult one if you’re not well equipped, but also yields valuable loot.