How to get the legendary pickaxe Soul Seeker

[Placeholder guide, add more screenshot and detail]

• Get all required materials
• Get Cipher Parchment, dropped from Igneous the Molten Mass
• Find the Ancient Forge in Molten Quarry, at a distance of 1600 tiles from the Core
• Extrapolate the distance by scanning the following bosses:
  • Ra-Akar the Sand Titan is 1000 tiles from the Core
  • Igneous the Molten Mass is 1400 tiles from the Core
• Stand next to the Ancient Forge, and then use Cipher Parchment