Lighthouse Gem Monster

"Lighthouse Gem Monster" is the mysterious gem that possess the lighthouse on top of the Crystal Temple.

Characteristics
It is a diamond-shaped gem with a light blue color. It has no physical body.

Abilities
It possessed the lighthouse and shares many "paranormal" abilities such as causing objects to fly violently, animate scarecrows, and manipulate the lighthouse itself. It can also project a memory of past events. Even as a lighthouse, it can still feel physical abuse like carving on the wall. It seems to almost have the ability to talk, being able to faintly say Lars's name.

Trivia

 * It is the first gem monster to be able to project a hologram via gem.
 * It is the third gem to be embedded into a inanimate object. The others are the Desert Glass and Lapis Lazuli.
 * It is the first gem monster that specifically targets an individual.
 * It is also the first gem monster to be enemies with a human.