Sheikah/Artifacts

The Sheikah were noted to have been very capable craftsmen and magical inventors. Relics of their tribe that possess unique magical powers have survived the generations and still function as they were originally intended. They had an affinity for powers related to the element of shadows (hence their tribe's nickname) and thus showed an aptitude for developing tools that could help the wielder see through illusions or learn secrets that may not seem apparent to the user.

Lens of Truth
The Lens of Truth is a powerful Sheikah artifact that, when used in conjunction with Magic Power, will allow its wielder to see through any illusion and thus see the "truth" of their surroundings. Its appearance is heavily based upon the Eye Symbol that is the insignia of the Sheikah tribe, with the actual lens acting as the "eye", the gems atop it acting as the "eyelashes", and the handle acting as the "tear". This artifact is also known by the alternate name of the "Eye of Truth." It is said that the Lens of Truth was once owned by a man who lived in Kakariko Village, and its is implied that he buried it underneath his house in the Bottom of the Well. The lens has appeared in both the lands of Hyrule and Termina, each time fulfilling the same function.

Mask of Truth
The Mask of Truth is a uniquely powerful mask that was also crafted by the Sheikah before their disappearance. Its most notable feature is the presence of the distinctive Sheikah Eye Symbol that adorns much of the mask's surface in colors of red and yellow on a mask of white. However its true power is all the more fascinating in that it allows the wearer to communicate with the Gossip Stones that are scattered across different lands including Hyrule and Termina and thus unlock the secrets each holds.

Stone of Agony
The Stone of Agony is a companion relic to the Lens of Truth and the Mask of Truth that allows the possessor to "feel" the truth of their surroundings as the stone will vibrate when a secret is nearby. Link acquires the Stone of Agony from one of the cursed residents of the House of Skulltula in Kakariko Village after destroying 20 Gold Skulltulas. The stone has a unique shape and possesses the symbol of the Triforce on its surface. As it is confirmed to be a companion relic to the Lens of Truth and is acquired in Kakariko Village, it too is thought to be a Sheikah creation and is speculated to be part of a set of objects meant to help one be fully aware of the truth of their surroundings through the senses of sight, hearing and touch.

In the 3DS version of the game, the Stone of Agony was changed to the Shard of Agony. This is due to visual and audible alerts.

Gossip Stones
The Gossip Stones are a series of enchanted stones that bear the Sheikah emblem and were created to act as observation tools that would gather information and reveal it to the one bearing the Mask of Truth.. While they are found primarily in Hyrule, they are also found in other lands such as Termina and the World of the Ocean King, the only notable difference being that the version within the latter does not require use of the Mask of Truth.

At first, when struck, the stones would only reveal the time of the day to Link. Their reaction changes with the Mask of Truth. They begin conversing and revealing valuable pieces of information. Similarly, the stones found in Termina, when struck with a sword, will cause a powerful vibration and a high-pitched sound before revealing how much time remains before the Moon crashes into Termina, though they will reveal their true secrets to the holder of the Mask of Truth like their Hyrulean counterparts. The stones make a third appearance in the World of the Ocean King, but these stones do not require use of the Mask of Truth. In, Tetra and the King of Red Lions use the Pirate's Charm to communicate with Link. This charm is an improved form of the Gossip Stone. A similar stone, the Howling Stone, is featured in Twilight Princess and can summon the Hero's Spirit.