Poke.

Her finger meets some resistance on the way in, and once it's in it hurts. A lot of the blood in her hand is trying to flow into that finger now.

Huh. Well, it's gonna stop that now, and stop hurting; what else does it feel like besides hurty?

The inside of the weird sphere feels like suction; the edge is still trying ineffectively to shove her hand back out.

Huh. Anything in there?

Nope! Not even air, as far as she can tell.

Weird.

She leaves the water and marks it on her map and goes looking for swag.

There's a place that might once have been a set of boat docks, containing four man-sized crabs!

Crabs should be less big than that, wow. Any loot in the remains of boats?

One of the shipwrecks has several silver coins and a gold one! One side of each coin has a head on it, but it's not super clear whether it's the same head every time. The backs of the silver ones have a bird, and the back of the gold one has a palace.

She marks the locations of all these on her map and pockets them, then goes further in to the island.

Ruined house! It's actually got some of its second story still on. Inside are eight small bedrooms, in which she finds a lump of amber on a chain and two geodes. There'a also a kitchen, which contains a few rusty knives, a cracked stone countertop, and a big metal box too covered in dust to make out the features on its surface.

She takes the jewelry. She pries open the box.

Flakes of rust crack off the box until eventually the front panel swings forward and down. Inside are two ceramic plates and a bowl, and fragments of what was probably another bowl.

Also, now that some of the dust has been shaken off, she can tell that there's a button on the side.

...she pushes the button!

The button doesn't do anything, but the others mentioned these devices needed magical charging.

She inspects the dishes for interesting properties of any kind.

No two of them match, but they're all relatively pretty, with nice glaze patterns. And relatively undamaged apart from the broken one, probably from having been in a cool dark metal box the whole time.

She closes the box again and marks the location and moves on.

It isn't nailed down; she could probably pick it up and bring it with her when she goes back to Mechuria City if she doesn't end up finding too much other stuff. Outside is broad streets and sunlight and more of those purple-winged parrots. This one is eating round yellow fruits off a bush and eyeing her placidly.

She notes the parrot but doesn't interact with it. Loot loot loot loot.

Here's a building with chunks of nice mosaics on what's left of the interior walls! Most of them are pictures of people sitting on the floor with their eyes closed, occasionally surrounded by pretty lights or with hopefully-metaphorical extra eyeballs. The last one is a beautiful, intricate fractal pattern that invites one to stare at it.

She will copy these onto spare patches of skin.

Next?

The next building has nothing in it except a lot of angry bees, but the one after that looks to have been a glassworks! Most recognizable among the wreckage are the shattered remains of a glass tree, and a miraculously intact small glass rose. There's also a metal box that appears to be hooked up to a foot pedal.

Pedal pedal?