Skull Sweep

Skull Sweep is an Event in Sea of Thieves that is active every Wednesday throughout the July 2020 Ashen Winds Content Update. During Skull Sweep, Players earn raised rewards for selling Bounty Skulls to the Order of Souls.

Official Summary
It's a Skull Sweep! Earn raised rewards for Order of Souls activities every Wednesday, as the skeleton-smashing sages clean up the seas.