Page 16: - Wall note from Roji reminds young Robin to go upstairs early, conveying caretaker instruction. - Second wall note lists chores to complete before adults return, setting daily tasks. - Young Robin mutters scrubbing sounds while cleaning floor with effort and sweat. - Young Robin reacts with surprise exclamation while washing dishes. Page 17: - Young Robin announces arrival at the door to return books to Doctor Clover. - Scholars inside excitedly announce Robin's approach and urge preparation. - Greeting sounds and welcoming calls come from inside the library. Page 18: - Scholars cheer congratulations to Robin for passing the archaeologist exam. - One scholar declares Robin possesses hereditary genius. - Scholar announces Robin can now claim the title of archaeologist. - Bearded scholar excitedly mentions prepared cake for the occasion. - Robin responds with quiet confusion or surprise at the sudden celebration.