Mycroft took a breath.
Mycroft did something then he never does. He spoke without calculation of every word, examining the consequences and angles.
If it were not such an insult, he would have said he spoke from his heart.
"I died," Mycroft words seemed rushed and random.
"I beg your pardon," Sherlock was confused by Mycroft's seemingly arbitrary statement.
"At first I did not believe that you died. I looked, read the files on the examined body. I looked at the surveillance cameras. I looked for anything that would indicate that you were alive. According to all accounts, Molly has always been exceptional in her job, and her reports was quite thorough and conclusive. No reason existed to doubt her reports that the body was yours."
Mycroft eyed his brother suspiciously, "Down to the DNA, all evidence pointed that to the fact that it was you," Mycroft smiled while looking at his little brother, "I suppose you have always been exceptionally gifted in the sciences, Sherlock."
Mycroft took a breath.
"You were gone. I was alone. It was my fault." Mycroft shifted in his chair and sighed.
"Despite what people think, I do feel guilt Sherlock. Granted rarely, but when it concerns you, often."
"Then, I started seeing you everywhere. However, every lead turned up to be nothing. I even thought I saw you outside my residence the week of your death. I was going quite mad." Mycroft raised his eyebrow while biting his lower lip.
A childhood habit the rare times Mycroft was alone with Sherlock and nervous.
"The red haired man?" Sherlock asked frowning.
"How did you…" Mycroft started to ask before being interrupted by his brother.
"That was me," Sherlock confessed.
"I don't understand," Mycroft sat up straight now.
"Neither do I. I was about to leave the country, I saw John and Mrs. Hudson at the grave the day before. I had to see you too." Sherlock said quietly with some embarrassment.
Sherlock added, "It was illogical, and dangerous and sentimental, yet I could not stop myself."
It's really long, sometimes it exceeds in violence (even if, for each of the more violent chapters, there is also a "less graphic" version), the plot is mainly a collection of clichés (particularly, too many mishaps happen to be plausible...) and it is quite often too dramatic, BUT... It's also generally well written, our heroes are almost always in character, the dialogues are brilliant, and, most of all, there are many scenes like this one, which those who like tales of the Holmes Brothers will certainly enjoy.