For all of the loving detail thatThe Witcher 3renders its world with, precious little is spent on the School of the Wolf’s history. While we know about the school’s quick decline, we learn little about what it was like in the early days.

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If you are interested, this guide covers the unmarked quest Trail of Echoes. This short adventure has Geralt rediscovering a cave in Kaer Morhen where the Trial of the Grasses was conducted before the fortress' construction. We explain how to find this mysterious cave and where to pick up the book that ends the quest.

Starting Trail Of Echoes

The cave in question isat the end of the road leading northwest out of Kaer Morhen,in the woods. It’s a long journey that you will want Roach for but is on an easy-to-follow path.

Geralt will recognize the cave when he gets there, commenting on its history as the site where witchers received their mutations before the fortress was built.

A screenshot of The Witcher 3’s map of Kaer Morhen, with an orange circle over a quest location.

The diagram forSuperior Wolf Trousersis in the cave, making it worth a visit.

Once you get inside, the cave’s new residents will greet you.Several nekker warriors and a devourerhave made their home inside and will react violently to your visit, forcing you to kill them before you can explore.

A screenshot of Geralt’s Witcher Senses highlighting several objects used in Witcher mutations.

Finding The Artifacts

Though the quest doesn’t have a material reward, you will receive25 experience pointsforinspecting the relicsand, most importantly, theTrial of the Grasses registry tome.

Your Witcher Senses are essential for completing the quest.Interact with all the items with a red outline.Geralt will have something to say about each object, giving you his thoughts about the process.

An edited screenshot from The Witcher 3, with an orange circle over a book on a table.

The hardest item to find isthe registry tome.The questwill not end until you find it,which can be annoying given its unfortunate location. It ison one of the “beds”,in the middle of the cave. It can be hard to spot thanks to it being enveloped by the bed’s larger glow.

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