It was the third 'night' when they decided to move out again, as they soaked in the hot springs for even slightly longer.
As Wu Long said, they started to feel all of their Seven Roots being nourished at about the 18th hour mark, and it kept going for another 8 hours.
While all of them had benefited, the biggest beneficiaries were Wu Long and Gong Liwei, as both of them had lower talent, and thus for them this was an even more meaningful treasure, which would ensure a smoother cultivation going into the Seven Profound Realms, where the Seven Roots played a key role.
And of course, as a Dual Cultivator, Wu Long benefited massively from his Harmonic Root being enhanced with the miraculous natural treasure's effects.
They rose from the springs and after wiping their bodies wore their clothes.