The mucking-out of the library has resulted in a general redistribution of old tat and four wheelie bins full of old papers and carrier bags leaving the premises. T.Aldous is back in the country, has got wind of what's going on and has made it very clear to Mary that he is Not Happy. He'd have been considerably more unhappy had they followed orders and cleared his office!
Bad news: This gives T.Aldous a blank cheque for unaccountability. Anything that happens he'll be able to say: "that will have been thrown out while I was on holiday."
Good news: It'll be a welcome change from the inevitable "I was on leave that week."