Sealed Room

In, the are a series of underground chambers that lead into the nether regions of the Clock Tower in Termina.

Overview
The Catacombs are only visited once during the entirety of Link's quest, serving as a pathway into the land of Termina from the Lost Woods. It is completely uninhabited and features only three rooms, the last of which includes a treasure chest containing Deku Nuts. Link accidentally wanders into the Catacombs after pursuing a masked Skull Kid accompanied by two fairies, hoping to retrieve his ocarina and horse from them. He enters a large tree and falls into a deep chasm, landing on a Deku Flower in a large room with the Skull Kid hovering in the distance. It is revealed that the imp-like creature had gotten rid of Epona, and then he proceeds to lay a curse on Link, turning him into a Deku Scrub. The Skull Kid subsequently departs with the darker coloured fairy, Tael; however, they accidentally leave behind the lighter coloured fairy, Tatl, and she winds up offering her assistance to Link in helping him find a solution to his dilemma.

There is a lonely, withered tree near the exit in the final area of the Catacombs. Tatl brings attention to it, drawing a comparison between its appearance and that of Deku Link. It is later heavily implied that the tree is actually the deceased son of the Deku Butler, as he is seen grieving over it after the defeat of Majora's Mask. The cause of death is unknown, but it has been speculated that his soul was stolen by the Skull Kid and used to transform Link into a Deku Scrub.