A One-Round Eberron Adventure for 8th-level Characters From the introduction: Earlier in 998 YK, almost by mere chance, the Diggers’ Union discovered that a group of extraplanar shapeshifters called the nerra had infiltrated Eberron. While member of the Diggers’ Union thwarted and opening between Eberron and a strange planar place called Specurium, that the mad gnome Belental Heirm theorized was some new plane of existence, some nerra were able to escape, and may still be free pursing their secret goals in Breland or elsewhere in Khorviare.