Bottomjaw Castle is the largest human-made structure on that Earth, and within Calthoss' Creation up until the construction of Huron's Walls. It is also the capital, largest, and most-populous city of the Bottomjaw Empire, and the largest, and most-populous city of that Earth. Bottomjaw Castle was finded 489 years before the Last Day of Lobtonne, fifty days after the Battle Over the Vyk on the first day of the new year by Kenes, a Rainlander man who was to be the architect of Bottomjaw, as well as its first Kalth King. Kenes built Bottomjaw Castle around the Shadowfinger, which the mighty River Vykskytunulok flows around. The Shadowfinger is roughly pentagonal, so Kenes built Bottomjaw Castle in the shape of a pentagon. It continued to grow for centuries, with construction of the castle on