The Search for Sherlock

In this Sherlock/Watson is canon and they have a kid, but when the death of the Reichenbach occurs when they have adopted their child Hamish, John begins to feel alone. When little Hamish grows, he begins wondering where his father is, but John doesn't want to break the news to him. Will some old friends of Sherlock be able to uncover Sherlock's death, and, possibly find that he is not dead?