That sounds like a good plan. Just in case it happens to be cursed.

[He says it flippantly, like a joke, with a wink and a grin over his shoulder, but he does watch as Hiccup collects the lichen, making sure the sample is safely sealed in the jar before turning back around. At least nothing seems to be coming from the strange glowing mass yet.

It's all fun and games until you get sloppy. Then people get eaten. That at least he's learned so far, but it still hasn't deterred him from going on these adventures or trying things he definitely shouldn't be trying. Christian leads the way, hand held up so he can light the path ahead.]

We're okay. We'll go slowly and just take a peek. If it's giving off heat, it must be important.

[He follows the draft of air, looking for crevices in the stone wall until he sees a place where the light doesn't bounce back to them.]

Here. It'll be a tight squeeze. Do you think Toothless can make it through there?

[The opening is a jagged crack in the wall, splitting it open like a lightning strike had broken it. It's larger than a man, but still not a clear passage.]