Where are the four artifacts of Sonias in My World? I only found shovels and manuscripts.
The axe is in the spider hole, that is, in the forest near the pirate ship, and near the mountain, where there are many spiders.
The sword is in the pig man's territory (see the picture below)
Dig down where the line of sight points. You will see a cave with an icicle in the middle and a treasure chest at the bottom of the icicle with the sword of Sonias in it.