How old is the school? I wonder what a passage like that could even be used for...

[Ah, he's excited now though...wouldn't it be fun to find a secret tunnel? Sinclair looks at Oria and gently pulls the blankets up further. The kettle beeps to tell him it's done so he gets up, makes them both tea with a bit of honey and sets one on the table within Oria's reach]

Maybe you should go back to sleep and catch up on your rest.