This patch works by adding a small addendum to when Sabin speaks to Shadow at Gau's father's house. The event address for speaking to Shadow is now CC/6096, which sets the unused event bit 1E81, bit 4, and then branches to the normal conversation at CB/0A5F and continues normally.

Accordingly, the event when entering the Imperial Camp has been changed to use this event bits at CB/0C75 and CB/0C7E.

No other changes were made, so as long as CC/6096 through CC/609C, and event bit 1E81 bit 4, are unused, this should not conflict with any other patches or hacks.