jack-o-lantern fungus (noun)

1. The Halloween-themed party was held in a castle-like venue decorated with jack-o-lantern fungi sculptures.

2. As the rain poured down outside, the protagonist stumbled upon a creepy forest where the trees were adorned with glowing jack-o-lantern fungi.

3. In the magical realm of Elaria, the pixies used jack-o-lantern fungi to light up their enchanting woodland dwellings.

4. The witch's cabin in the middle of the haunted forest was filled with jars containing pickled jack-o-lantern fungi, providing an eerie ambiance as described in the book.