You’ll find the first Artefact just outside Kratos’ house, heading north before checking behind the rock to the right.
This will probably be the easiest Artefact you’ll find throughout Midgard, it lies sparkling in front of your eyes as you follow Atreus tracking the deer.
Once you enter into the ruins with Atreus and reach a fork, take a right and follow the path to find a chain leading down. At the bottom of the chain are two Wolves, defeat them and find the Artefact in the corner.
Once you enter the main temple in the Wildwoods you’ll come across a gate that you need to open by pulling the chain. Instead look behind you to find another door you can enter, leading to a frozen pond inhabited by two Wolves and a Draugr. The Artefact is found in the corner of this pond.