The League would be in the middle of a meeting between Superman, Wonder Woman, and Batman when a Lazarus green portal opens up in the middle of the room and out steps a towering woman with blue skin and four arms wearing ancient Greek armor. She's take one look at the assembled cast with her red eyes before she spoke.
"Please, lower your battle stances. I did not come for a fight."
"Why are you here then?" Batman grunts, not relaxing his stance at all as he took in the unknown. Superman cast a glance at Diana, recognizing the armor to be if Amazonian make.
"And why can't I hear your heartbeat?" Superman added in, looking very worried.
"I came here to make a request of my living kin." Pandora explained, carefully blocking the entrance of the portal to sheathed the precious creature Frostbite was holding within the entrance, hidden out of sight of the League, "I am the ancient spirit of Diana's cousin. A Daughter of Hepheastus created on Zues' command many, many years ago in a time of myth."
At this Diana let out a gasp, finally recognizing the being in front of her,
"Please, call me Pandora." The ancient being chuckles, "I am not so big on formality, Princess Diana."
"Oh. I could never- you're mere presence is an honor in and of itself. My Lady!"
Batman diverts the attention back to the topic at hand,
"You mentioned a request? What is it?"
"Oh, calm down!" Pamdora scoffed at the suspicious tone in the Bat's voice, "it's nothing bad! I just need some... well, it's a rather awkward situation." Pandora glances at the portal behind her before turning back, "What I am about to tell you can not go beyond this room. The safety of the universe as a whole could be in jeopardy if thw wrong ears learn if this."
The gathered heroes all give nervous glances before nodding their agreement, Batman subtly using a scrambler to ensure no unwanted ears and eyes can see this and only his cowl will retain the recording.
"As a spirit, I reside within the Infinite Realms. Some may call this by a variety of names, Hades, the Underworld, Hell, Valhalla, Heaven, Purgatory, the Spirit Realm, to name a few, some of the younger spirits even call it the Ghost Zone. It is where the spirits of those who have passed yet not moved on reside, as well as where godly spirits of concepts such as Time and Nature reside. Some being are Born there, others die and live their afterlife there, all are connected."
"Why would you tell us this?" Superman asks, perturbed.
"Because it's necessary for you to understand the importance of what I ask." Pandora smiles before turning to Diana, "Princess Diana, my dear cousin, what I ask us something I can not ask another. It is of a personal matter, but one that is so very important."
"What... what is it, My Lady?"
Pandora waves her hand, gesturing for Frostbite to join him. Bruce, Diana, and Clark all tense up a bit at the sight of a yeti stepping out of the portal whik3 carrying something before the bundle in his arms glanced up. A tuff of fluffy white hair framed a pair of wide green eyes that glowed a toxic green and a chubby face with green freckles long his nose, dressed in a warm onsie star constellations patterned over it and a black hood, and holding his thumb in his mouth. Pandora carefully lifted the child, only about 5 years old at most, into her arms for a snuggle before handing Danny back to her co-parent,
"This is Danny, he is a youngling ghost only recently formed. However he formed a little... differently from most other spirits. Frostbite and myself have taken to co-parenting the child when we discovered that he is a very rare breed of spirit. One who is only partially ghost, and partially human."