Old sluts are not to be underestimated.

Base +7, Balletrixx +6

First page:
"There it is, just as the Scroll of Irias described it: 'Five skulls watch over the buried star'"
Same panel shows an altar with EIGHT skulls arranged in a circle.

That's the kind of perception check I'd expect from a princess in a smut comic which is going to involve her falling into someone's (or something's) nefarious, perverse clutches.

Base +11, greatlakes100 +6, osc +7, 苍肥皂 +6