Nora investigated the largest dome

She drew near the largest dome, ever careful of drawing any attention. She peered inside. There were several large mosquito like bugs flying around. Nora was amazed; what incredible fauna! These must be the largest insects alive on earth! Their wingspan was nearly half a metre across, and their bodies were just a touch shorter, with long, thin legs and a narrow thorax. Their heads were about the size of a fist, with strange eyes and a long, slender proboscis. That is no doubt how they feed. Nora shuddered at the thought of one of these attaching itself to her and sucking her blood. Hopefully that won't happen as long as she's out here and they're in there.

There's a latch not far from where she is standing. The lock on it looks very primative, and a few precise strikes should be enough to break it open.