| Category | Marvels |
| Continent | Straiden |
| Region | Karnegmoth |
| Location | Râpha-Sûn |
| Owner | none |
| Built | 23 Warper 774 |
This remarkable feat of engineering and sorcery was created by the Tinnanguth Empire. Dozens of arcanists and mentalists channeled earth energy from the world Granitoid into a rocky outcropping south of Râpha-Sûn. This mass of rock had long posed a navigational hazard in the Sap river. While the energy was gradually amassed, hundreds of earth elementals labored to shape the extended portion of the rock. Once this was complete, the final stage of the ritual was enacted. The earth elementals who had manipulated the rock found themselves drawn into it, becoming its motive force.
The Crawler lumbered forward, its mighty form resembling a colossal rocky centipede with a myriad of crawling limbs.
Zîntib Ebethord, the Chief Scientist overseeing the Crawler Project, stated, "Son of Granitoid."
The device's locomotion is facilitated by harnessed elementals and siphoned earth energy from Granitoid. Movement was reported to be sluggish and exceedingly noisy, requiring a week to cover the distance a horse could traverse in a single day. A fortified settlement was constructed atop the device, gradually expanding into a modest town. To support this mobile fortress-town, aqueducts and cranes were built, connecting areas from the outer walls of Râpha-Sûn into Tîlû. This formidable structure served as a significant deterrent against incursions from the once tangled and untamed forest.
Ancient texts of the Tinnanguth recount that Zîntib Ebethord, a revered and influential Dove Council senator of Tinnanguth, had commissioned the construction of The Crawler. In his later years, he grew bored of his creation and embraced the serene life by the shores. There, he developed an interest in shipping and left the device, now known as Ebethord's Crawler, on the shores of Whalebin. The Hawk Council of Tinnanguth coveted the device, recognizing its obvious military potential. The ensuing debate over confiscating it drove the elderly senator into a state of paranoia and insanity. To defend his Crawler, the arch-mage and former senator took an unthinkable action: he broke the seals containing some of the Earth Energy that powered the device. The released energies coalesced into their true forms, summoning nearly two-hundred earth elementals. Promised freedom in exchange for their service to Ebethord's bloodline, the duped elementals agreed and defeated the government forces sent to seize the Crawler, nearly sparking a civil war. The most charismatic of the elemental guardians was a Dao named Puldork Lherzolite-Tun.
In 801, Ebethord breathed his last. This development precipitated the transfer of The Crawler and her protectors to his eldest heir, Lady Sembyar. She inclined towards the Hawkish faction, a staunch nationalist who valued might over negotiation. Her decisions would ultimately contribute to the demise of Tinnanguth.