The White Lady of Rohan

Aragorn and Legolas stood at the door as they waited for Gimly to arrive.
“What’s keeping you?!” Aragorn shouted at the bathroom door.
“My hair’s all knotted!”
“I find that ‘Ever-blonde super-shine™’ helps” Legolas replied.
“I’m not blonde!” Gimly grunted.
As they were just about to leave there was a piercing scream followed by a loud cackle.

“Legolas! What do your Elven eyes see?” Aragorn questioned.
“There is a man of Rohan, Éomer! Let us run to him for now we shall learn the meaning of haste!” Legolas answered, running out of the door and up to Éomer.
“Elf, dwarf and man! Something has gone amiss in Rohan! I have left my people under the care of my guards, they are no suitable leaders. We must return!” Éomer shouted down from his horse.
“There may be a day when we refuse, but today we ride!” Aragorn cried, swinging himself up onto his horse, his companions doing the same. They looked to the east, before riding into the sunlight as fast as they could.

“What awaits us in the Home of the Horse-lords?” Legolas asked as they rode.
“Many great perils, I fear,” Éomer sighed, “It is as I feared; the enemy have returned.”
“Being such a lower form as a dwarf I fail to understand,” Gimli’s muffled voice came from behind Legolas.
“I see he’s still here,” Éomer muttered, stopping abruptly when he saw the look on Gimli’s face, “He really should have his own horse by now,” he added quickly.
“Stop your bickering! Middle Earth may be on the brink of destruction and all you can talk about is history! Shadows block the horizon; Éomer, where is Éowyn?!” Aragorn said sternly.
“She rode with Faramir. I am unable to tell you there whereabouts.”
“I fear-” Aragorn started to say, before turning his horse and riding to the South.
“What the-” Gimli started to say.
“No!” Aragorn screamed, speeding up, "We must find your sister, Éomer. I fear she is under threat, Faramir too."
"I thought Sauron has been destroyed?" Gimli asked anyone who was listening.
"He is not the only evil. The rings of power may have started many wars, but there are many more to come. We need to find out what the new evil is planning," Legolas replied.
"Let us ride- wait!" Aragorn shouted, jumping off his horse and picking something up from the grass.
"The pensive of Denathor!" Legolas cried.
Aragorn looked in it, but to his surprose he did not see two aging hands, he saw something he thought he and his compmanions had destroyed; Mordor.