Prologue: Nightmare Mark.
In the cold, shadowy recesses of her celestial prison Night Mare Moon shuffled around restlessly, her consciousness wrestling with that of the old princess'.
"We doth not wish for thine assistance any longer." Hissed Luna's voice within Nightmare Moon's mind, she blocked it out, but today the young mare's conscious was stronger than usual. It was also the Summer Equinox; her strength must've come from that blasted older sister of hers.
"Go. Back. To. Sleep!" She commanded drawing on her dark powers, she felt the other pony struggle against her, but eventually fade away again. After nearly a millennia in her prison, she had amassed powers like no other, whilst Luna remained the same, a practical comatose child for all these years.
Oddly, not two hours later Luna stirred again.
"We doth not have