User Summary: The Mushroom Grotto Adventure Pack is part of Caverns Deep! Adventure packs contain unique terrain pieces specifically designed for their encounter area, unlike the core packs which contain the most commonly used terrain pieces. The Mushroom Grotto Adventure Pack contains unique pieces for Mushroom Grotto Encounter Area. It is made of "Dwarvenite" and includes some metal and magnetized parts. Some parts have LED circuitry (switch, battery, and socket) to support LED lighting attachments. This item was initially available as an add-on for the Build Your own Cavern pledge level or included in one of the other pledge levels during the Caverns Deep! Kickstarter. The item is available in painted and unpainted versions. Mushroom Grotto Adventure Pack comes with these 5 pieces: (1) LED Mother of all Mushroom (1) Magnetic Insert Wall (1) Low Arch Insert Wall (1) Magnetic Chained Crystal (1) Tainted Bulette