I've heard that Sai Baba specifically mentioned that his stories should be written and published in London. Can you provide the source for this?

The provided texts do not contain any reference to London. In fact, Sai Baba's instructions about recording his stories were more general regarding location. As mentioned in Chapter 2, after giving permission to create a collection of stories, Baba advised, "Certainly keep a record; whether at home or elsewhere, keep remembering it repeatedly." This suggests that the physical location was less important than the act of constant remembrance and contemplation. The primary focus was on creating a record that would serve as "a resting place for the soul," with Baba promising his full help to the author who surrenders their ego, regardless of where the work is performed.