Well there are five silver keys in total we can get if we finish everything, so if we use them for this parallel to the gold key, it's more like 'only' unlocking ten, but still. Ten. 😐 In winter. 😕 That's going to be bitter even if the Portkeys are measuring properly, something I shouldn't like to have to count on the way they've been lately. This isn't pleasant at all.

(But yes, I really need those books as well... Bugger.)