I adore Sailor Moon and InuYasha crossovers. This is my first shot at crossover and some things will be AU to fit with how I imagine this story and these characters. I'm hoping it won't be too long because I want to get back to A Neatly Laid Trap (no, I promise, I have not forgotten about it). I own nothing!

She was tired. So very tired. The kind of tired that seeped into the very marrow of one's bones, making each step heavier than the last. The kind of tired that made one's soul dim and darken – even a soul as bright as hers.

Queen Serenity the II walked the empty halls of her Moon palace, her steps silent, and her heart heavy. So many millennia had passed, so many friends and loved ones gone, so many nights spent only in the company of her memories. And she remained, ageless. As young and as beautiful as she had been when she had first restored the Moon Kingdom and brought peace to the Silver Millennium Alliance once more. But the light of the Silver Imperial Crystal had changed her in the battle with Chaos. The power the Crystal allowed her to wield had made her a true goddess, immortal. Her court, her inner circle, her friends had all grown and aged as Serenity remained eternal. When she had realized that any husband she would take would grow old and pass, any child she may have would die before her… she had released her beloved Darien and given up the dream of their child. Darien had gone on to love her best friend, Rei, and Serenity had watched over their children and their children's children and their children's children's children until the royal line of Mars had died out just like the rest of her darling Senshi.

Only she and protectors of Pluto and Saturn remained.

"Your majesty," called the soft voice of the Keeper of the Glaive of Death. The young woman bowed her head even as her dark violet eyes tracked her Queen.

Serenity turned to face her friend and planetary guardian, her crystal blue eyes revealing the deep exhaustion and loneliness present in her soul. "Haruto," she breathed, her beautiful voice losing none of its lyrical quality despite her sadness. "What brings you to my halls?"

Haruto studied her queen, noting the stiffness with which she held herself in the voluminous layers of pearl-colored clothe. The Queen turned away from her penetrating gaze and moved out to the balcony. She laid her delicate hands, decorated with rings and bracelets, upon the bannister and gazed out at the beautiful blue and green planet, just as she had done when she was a girl.

"We are concerned, your majesty." The Princess of Saturn came to stand a few feet from her sovereign as she stared unseeing at the planet she had given her mortal life to protect.

"We?" Serenity asked, disinterested.

"Lady Pluto and I, your majesty," Haruto clarified. "We have watched you these last hundred years and you are not yourself." As a young girl the Queen had been full of life and love – able to spread her joy wherever she went. She had remained the same even as she took up the mantle her mother had left her, even as she had become more powerful than anyone had previously dreamed she could be. Haruto knew the deaths of her close friends had broken a piece of the Queen's heart but she had carried on, able to love the descendants they left behind just as well. But now the Queen's halls were as empty as her heart and it was obvious this existence had taken its toll on the usually effervescent monarch.

Serenity shrugged, still staring at the vibrant planet. "I have done my duty." Haruto could not argue with that statement. While Chaos still roamed and influenced events among the galaxies – it was impossible to completely destroy it – its power had been greatly diminished and all creatures across the galaxy enjoyed peace and prosperity unlike any before.

"You have indeed, your majesty," the Princess of Saturn agreed. "And now it is time to rest."

The Moon Queen startled and turned to face her friend, her long platinum hair whirling with the sudden movement. "Wh-what do you mean?"

"I know you are tired, my Queen. I know your soul aches with the amount of losses and the weight of memories." The sympathy in her soldier's eyes was enough to bring tears to Serenity's own. She had thought to ignore her own pain – she was needed here, to protect Life, and encourage Love and Happiness in others even as her own heart ached to feel their warmth again.

"It is time to sleep, my lady." Haruto reached out with one gloved hand and waited.

Serenity stared at that hand, wanting nothing more than to accept and put down her burden but…"But what if…"

"I will place a geas on you. You will only awaken if someone of pure heart has great need of you."

Serenity sighed in relief. She reached out and grasped Haruto as tears of relief poured down her face.

Saturn had decided to place her beloved sovereign on the planet she loved so dearly. Back on Earth, in Japan, during a time where her resting place would not be disturbed. Queen Serenity was concealed in the heart of Mount Tate, in the spiritual oasis of Murodo, where the ebb and flow of psychic energy could interact with the Silver Imperial Crystal to protect the moon goddess. Deep inside the mountain she lay, enshrined and protected under layers of impenetrable moon glass and carefully woven spells, only to awaken when one of pure heart found her and wished for her to awaken…