Goddess Thyia's Other Law?

Shortly after Vaan circled the hole area for a few moments, the Death Eaters and their shroud of darkness departed the surface. They returned to Crown's Nest quietly and ghostly.

Since their target had fled the Garden of Thyia, the Death Eaters lost their reason to linger around the hole.

"I need to go and check on the person who came through this hole, Senior. I'll be right back," Vaan promised.

"Alright," Senior Willowthorn readily acknowledged with a nod.

The Elder Spirit didn't seem to have any misgivings about Vaan possibly leaving—only to return with a strong force to plunder the Garden of Thyia's treasures and its innocent residents.

Clearly, the Elder Spirit trusted Vaan despite their short meeting. More accurately, the Elder Spirit trusted the karmic aura of Varuna's life on him and Emerald's choice.