Arcane Compass

Description
The Arcane Compass is a tool you can craft to help you find portals when navigating the islands. When you have the compass in hand an onscreen arrow points North. This can help you stay oriented.

When you use the compass you activate its main ability. Your character will be surrounded by a directional aura that points to unopened portals. In this example the aura is yellow, so we know the portal will be yellow.

The red arrow just points north while the animated cubes indicate the direction to an unopened portal. The Aura in the image below is pointing down, as seen by the shadows below the yellow cubes. If it were pointing up the shadows would go in the opposite direction. The aura indicates the direction, distance, and depth of the unopened portal. When the portal is nearby, the aura almost completely surrounds you. If you were right on top of the portal, the aura would be perfectly circular, and you would know you just need to dig down.

Also, while you are holding this on your hand, scales will appear on your Mana bar. Each scale indicates 50 Mana.