Harry glared at him over the top of his glasses, "She’s brilliant, and we both know it - she connected the dots faster than you, at any rate," finding the runes he was interested in, Harry placed a finger over them, then pressed inwards and twisted. In one smooth motion, the basin unfurled itself into a pensieve that was twice as large, but half as deep. Large enough that two people could easily submerge their heads into its waters at the same time.