After getting through Coen's horrifying nightmare in the opening of The Blood of Dawnwalker, you'll have some time to get to know his home village of Laslea before everyone has to report to the church for Blood Mass that night.
During that time, one of the quests you'll stumble on involves a poor old woman named Gremla, who is the victim of a thief. For Mass tonight, Gremla is expected to present a new banner at Brencis' request. If she doesn't show up with the banner, she believes the cost will be her life, which is why she's asking for your help recovering it from the Vrakhiri-hating thief who stole it.
To begin the Blasphemy quest, open your map and look for the quest indicator near the Shrine in the middle of the village. You'll see Gremla standing outside of her front door along the main road, with a few locals standing in front of her.
Upon approach, you'll briefly watch her yell at them about the missing banner before she gives you the rundown of what happened. She'll permit you to search around her house if you choose to offer to help, which you need to do to complete the quest, and then you're ready to start.
Use Focus Mode on Gremla's home to fade out the world to a shade of gray and highlight points of interest in yellow. Specifically, you'll need to interact with the Loom inside her home, the footprints to the left of her house, the hole marks near the footprints, and the torn piece of banner where the footprints end.
After you do all of this, Coen will deduce that the thief must have been using a cane and have injured their hand. So, your next point of interest is to search Laslea for people with a cane.
Keep in mind you don't have time to do everything in the prologue before Blood Mass, so if you want to complete this quest, see it through before spending time elsewhere. Additionally, ensure there aren't any other things you'd rather do with the time.
The first person you'll likely stumble upon is actually just back up the road, towards Coen's home, on the same side of the road as Gremla's home. There will be a few guards near an arch reminding people about Mass and a woman sitting on a bench with a cane.
سەرچاوەی فەرمی بە زمانی ئینگلیزی: https://www.thegamer.com/the-blood-of-dawnwalker-blasphemy-quest-gremla-banner-thief-walkthrough/
