This time we didn't have to wade through the bushes, though my path was already quite passable. We simply followed the bank until we reached the place where the stream that leads to Silvana's house flows into the river. At this point, I noticed two things – first, a rock with a moth on it, which I had somehow missed before, was here also - bit diffrent ofcourse; second, now that I knew what was hidden in the rock, I was shocked that I hadn't noticed the strangeness of this boulder before - on this site windows also can be seen. I expressed my surprise, and she asked if I had a necklace with me before. The question struck me as obviously odd, because how could one possibly be connected, but I had to think about it.

"If I remember correctly, I was taking a bath by the river, where I undressed, and then... Yes! I left some of my clothes by the river, and the necklace with them. But what does that matter?"

She explained: when they moved here, long before she was born, her mother had created something she called a naivety inducer (Silvana called it the idiocy hormone, but her mother didn't like that). It worked a bit like alcohol - it caused a seeming decrease in inteligence, perception, and eased doubts - but it worked completely outside of consciousness and does not cause hangovers. Previously, they had sprayed the substance regularly, but since Silvana was able to notice someone approaching they started to spray it only on the occasion. Recently, it is sprayed by some automatic sprayers.

At that moment, it hit me, stopping me in my tracks - that's why my traveling companions hadn't noticed that boulder with the moth.

"But why am I seeing all this now?"

"There are two reasons: the first is that you're under the influence of the antidote," she pointed to my chest. "This necklace is soaked in it. My parents, when they wanted to invite someone, would give their guests a necklace like this so they could bring them here without any worries."

"And they let them keep it?"

"No. There was only one or two person I know of who received it permanently."

"And the second reason?"

"Saturation - from what I understand, you've been wearing this necklace for a long time and relatively continuously, so you still retain some immunity after taking it off."

Phenomenal! I didn't have time to digest all this information properly, however, because we'd just walked around part of the water surface on the slope (there's a fairly large lake there) when I saw two things: a real, large farm - with a field, a small barn, a corral; and a small, strange building seemingly built into the rock.

It turned out to be a power plant. I'm not particularly technical - I can tell you a few things about tools used by cultures from centuries ago, but when it comes to such novelties, I'm rather ignorant - that's why I didn't initially realize that light bulbs needed power. I expressed my surprise again, this time choosing my words more carefully, at seeing such technology in the middle of the jungle. It turns out that Silvana's father is (was?) a scientist - a physicist - and wrote letters with numerous innovators – including the creator of a device that generates electricity (direct current, if I remember what Silvana said correctly), who gave him one of his early prototypes. The rest is just time and energy – and that's how the water-powered turbine was created, which together produce continuous electricity. Silvana showed me all this – it's funny how much you can learn in the jungle

But the most interesting thing is what I learned about Silvana's parents...