The first recorded discovery of an Abuti was by Pleasance "Slugger" Lamprey-Pond during her ill-fated 42AK expedition to the island of Japon. While most details from Lamprey-Pond's sketches have been lost to sun-bleaching and apparent exposure to intense heat, we know that its longest axis measured ~1m and that it had the now characteristic weight:volume ratio of 1.618kg/m3. Typical of all Abuti recorded to date, visible sections of the mechanism were described as "sublimely delicate and balanced, containing optical and magnetic parts of no obvious order or function, and lacking a power source". It is not clear whether Lamprey-Pond's subsequent investigations activated the device or simply made it unstable; regardless, this was the last entry recorded in the expedition's log as returned by survivors of the search party, who also reported that the site now hosted an unstable ACT.
To date, 42 Abuti are publicly acknowledged by scholars of this field. All were found seamlessly embedded in rock at an absolute depth of 6.28m below sea level, regardless of geological stratum. Of these, 7 have been successfully activated and 4 found to be "survivable, scrutible, and exploitable", most famously the device popularly known as Constellation. The occasional severe activation failure aside, dedicated scholars of the field ("Abruti") consider their study to be a path to rediscovery of many of the Lost Arts.