The A Slow Poison quest begins at The Lighthouse, unlocked after completing the main quest, Sea of Blood. This side quest involves the Antivan Crows and leads you to Treviso, where you can gain a significant increase in Crows faction strength. Here’s how to successfully complete A Slow Poison in Dragon Age: The Veilguard.
Finding Dareth in Slow Poison Quest
After receiving the quest at The Lighthouse, make your way to Treviso to meet with Teia and Viago in the Antivan Crows Sanctum. From there, Dareth’s location will appear on your map, leading you to the docks. As you approach the designated area, a fight will break out before you can meet with Dareth or his cousin. Once you’ve defeated the attackers, you’ll find that Dareth has been killed. Free Jacobus from his cage, and he’ll prompt you to inspect Dareth’s body. After examining the scene, follow the quest marker toward the market.
Completing Dareth's Contract
As you continue, pay attention to Crow marks that signal the right path. Climb the vines marked in the area, jump through the broken window at the top of the ladder, and read the note you find inside to progress the quest.
Move through additional broken windows, then use the zipline to cross gaps as you track the quest marker. When you reach the garrison, eliminate the two guards and activate another zipline to reach your next location. Cross the beam and exit through the broken glass to continue along the rooftop until you can re-enter the building.
Inside, proceed through the building until you find stairs. Descend and drop down to the next level, where a mini-boss named Qamekmaster awaits. At level 20, he offers a challenge but has limited attacks, relying mainly on aggressive moves. Dodge frequently and use your companions’ abilities—Neve’s Blizzard ability is especially useful here to create some breathing room.