So! She'd met her new
little brother, who seemed awesome, and left a
note for Hermione in case they missed each other when she got back from her school exams. And then found her way down through the preserve to the Kraken cabin.
And now, Rikku was dumping out the contents of a duffel bag over the bed in A2 ... that counted as claiming it, right? Right. She put away a few things so it looked less messy - somewhat - and wandered out into the living room, waiting for other people to show up.
(Open for le Krakens!)