You should kill them quickly so that they won’t interfere with the battle.

Soon after the battle starts, wolves will come to the cave. During the battle, use dodges, Moon Dust bombs and Igni sign. After entering the cave, the werewolf will attack you. Additionally, wait till the night (meditation can speed it up) – during the day, the cave will be empty. Moon Dust and cursed oil will be very helpful. Before you enter the werewolf’s nest, you should prepare yourself. Destroy the obstacle with the sword or Aard sign. Go to the back of the cabin and find a blocked cave entrance. Enter inside and look around for Mysterious Notes. The trail will lead Geralt to the Isolated Shack. Investigate a clothing fragment on the way.

Next, you must find a fur fragment and start following the red tracks in the air that symbolizes blood smell. Remain in the forest and look for werewolf’s tracks leading to the rocks and a tree inaccessible for Geralt. Geralt will deduce that a werewolf have murdered her. Slightly further you will find a mutilated body of Hanna. If you refuse Margrit, then you must continue the search for Hanna in the forest. Red tracks will lead Geralt to hunter’s cabin You can take 10 crowns from him or refuse to take the payment. If you accept her proposition (72 experience points and 55 crowns), then you must return to Niellen and tell him that you couldn’t find his wife. She will try to convince Geralt to stop the search. A cutscene will start in which you meet Margrit, sister of the lost Hanna. After entering it, find a group of wolves near one of trees. Now you can go to the marked territory in the forest. Remain in the village and talk to two peasants – butcher’s wife Glenna and the local blacksmith. The man will tell you that his wife gone missing. Go to the Blackbough village west from Crow’s Perch (M3,) and meet with the hunter Niellen. You will learn about this quest by reading a note after interacting with a notice board in Velen. You must find and attack a group of wolves in the forest.

Wild at heart witcher 3 walkthrough