Always was curious about what exactly made Xehanort leave the Land of Departure, and what happened that left things between him and Eraqus unresolved. This is what my imagination's pumped out!

DAY 1
Xehanort wasn't able to sleep in that day, like he had wanted to. Eraqus came running into his room, slamming the door shut. Not leaving him to sleep for a few extra hours, like Xehanort told him to. He sat up slowly, yawning slightly and opened his eyes.

"You had better have a good reason for waking me up, Eraqus..." He said, looking over to him.

"I do, Xehanort! Our Master has chosen when we will take the Mark of Mastery exam!" Eraqus yelled, cheerfully. This piqued Xehanort's curiosity.

"Don't just yell that in my ear, Eraqus! Tell me more." Opening his eyes fully didn't seem like such a chore, now. He waited for Eraqus to say something, but all he did was stutter. Finally, something that resembled an actual sentence stumbled out of Eraqus.

"Let's just have you find out from him!" Eraqus then grabbed Xehanort by the arm and attempted to drag him out of bed.

"Let go of me!" Xehanort said, pushing Eraqus away. "I'm not going outside in my sleep-wear. I'll be out in a few minutes."

"Fine, fine. I'm coming back in ten minutes if you aren't outside!" And with that, Eraqus rushed out of the room, slamming the door shut. Xehanort didn't take much time at all getting dressed. He might have acted calm in front of Eraqus, but the reality was that he had been waiting for so long to hear some talk of the mark of mastery exam for himself and his brother, and here was not just that, but a day chosen already as well? He was excited, and left his room quickly. He stepped out of the castle door and descended the steps to the platform, where his Master and Eraqus were, standing at the edge of the ground. Eraqus turned to look at Xehanort.

"Master, Xehanort's arrived." He told him, tapping him lightly on the shoulder.

"I know, Eraqus. Xehanort," he said, turning to greet him, "I heard you had something you wished to speak to me about?"

"Yes, Master. Eraqus told me you have decided upon a day for our Mark of Mastery test?"

"Ah, yes. I have been watching you both grow from apprentices into true Keyblade Warriors. I decided it was time to see if you could surpass what barriers stand before you still as a Keyblade Wielder, by taking the Mark of Mastery. I have no doubt you will both succeed in doing so."

"I will do my best to please you, Master. When will we be tested?"

"Four days from now. I must prepare you both for the test." He said, turning back to the edge. Eraqus walked to the castle door, stopping and turning to yell to Xehanort.

"You coming, Xehanort?"

"Yes, Eraqus." He yelled back. He began to walk away as well, but was stopped when his Master called for him.

"Xehanort. Remain here with me for a short time. I must speak to you of something." Xehanort turned back to him as he heard this, and walked over. Eraqus went into the castle as Xehanort did so.

"Xehanort... You have grown much since I first took you as my apprentice. You and Eraqus have both made me very proud."

"Thank you, Master. I try my best."

"But... there is something that worries me about you."

"What might that be, Master?"

"I have not only heard, but seen your use of darkness." He turned to face Xehanort. "You must remember, darkness is not simply a forbidden power... but it is a parasite, as well. Continuous use of darkness can corrupt you. You have come so far... I do not wish to see you lose yourself to the darkness."

"But, Master-"

"No, Xehanort. I do not wish to be harsh on you, or strict, but I do not want to see or hear of you wielding darkness any longer. I am only trying to protect you."

"...Yes, Master. I apologize." He hung his head down, looking to his right a bit.

"It is alright, Xehanort. Now, go. Eraqus is most likely waiting for you."

"Indeed. Goodbye for now, Master." He said as he started walking away. He turned his head back to see his teacher staring up at the sky, still standing on the edge.

Day 1 done! Expect to see Day 2 up soon. Constructive criticism is welcomed!