A Knight Errant is a secondary quest in Thronebreaker: The Witcher Tales.
Walkthrough[]
After heading south from Cridam, you will encounter the knight Eyck of Denesle standing on the path. He tells you he is on a mission to kill a nearby manticore that has been terrorising the area. Head west to Abbot's Ravine where you will find the manticore's cave. To continue the quest, when prompted choose to search the cave and the In the Beast's Lair battle will start, ending the quest.