Sleeping in my memory
In the future, he will forget everything about Mummy's death. He will forget the way it marred his first year at Cambridge, the way it suddenly severed his connection to his own childhood, the way it made him want to cling to Mycroft and the way it forced him to shove Mycroft away again. Most of all he will forget what he deduced about her death, about the manner of it, about what that means for his whole past. Thinking about Mummy will do nothing more than bring up the old rivalry with Mycroft again. He will make himself forget.