Although the tentacle had gone in, it could at most only sense the Spirit Light Ball and was powerless in conducting a detailed detection of the environment. Nonetheless, since the other side had little reaction to Spirit Detection, Ling Mo boldly brought the Jellyfish up to the keyhole.
While the Jellyfish's body was definitely too large to squeeze through, sliding its tentacles in allowed for a rough sense of the situation inside.
This is the special advantage of Mutated Creatures, an aspect where zombies cannot compete with Jellyfish. Zombies could hear fine details and smell the humans inside, but to reconstruct the whole environment was too challenging for them.
Temperature, lighting, the size of the space, and even determine what things were inside and their locations through the smell—Jellyfish's only flaw was the lack of vision, which wasn't a problem for it but rather bothersome for Ling Mo for just one reason—he wasn't used to it…
