According to the android there are three runes i need. I'm assuming they're all on robots so i found the one on the first floor dining room and the third floor piano room. I looked through the second floor bedrooms but no robots so not sure where else to look. the side rooms on the fourth floor seemed to have nothing either.

1. Dining Hall on the First Floor - Left Side.

2. Library on the Second Floor - Go up and then around until you get to the upper staircase, you will see a slotted area within the backrooms. Go in the left one.

3. Go up and around until you get to the third floor stairs, look in the left room with the piano.