Zagyg. Other deities imprisoned in the dungeon included Merikka, Rudd and Wastri. The remaining five demigods have never been canonically identified, although the Living Greyhawk Gazetteer states that the nine were of "opposing alignments." Because Zuoken is known to be imprisoned somewhere on the central Flanaess, some believe he was one of the nine deities Zagig trapped at the Castle. Noncanonical lists of the other demigods have been offered by Gary Gygax himself, other early D&D notables such as Robert J. Kuntz and in various works of fan fiction, although many of these lists cannot be reconciled with the (now canon) "opposing alignments" criteria noted above. In Expedition to the Ruins of Greyhawk published in 2007, Zuoken was officially confirmed to be one of the canonical deities imprisoned. According to the module, when Iuz was freed, the other gods effected an escape except for Zuoken who remained imprisoned. By the end of the adventure, Zuoken has been freed, Robilar who had been replaced by an evil double is back to his old self and Castle Greyhawk is now some sort of multi-planar brigadoon. In CY 570, the warrior Robilar freed Iuz from his prison, and subsequently most or all of the other eight demigods escaped as well. Note: The 1992 publication From the Ashes (FtA) provides some contradictory dates to those given above. First, it states that construction of the Castle did not begin until CY 375. The adventure module Greyhawk Ruins, however, provides the CY 320 reference for the start of construction. Greyhawk Ruins is both an earlier work and more specifically focused on the Castle itself, and thus would seem to be a more definitive source. Second, FtA suggests both CY 505 and CY 507 as dates for Iuz's initial imprisonment. Given that all other references to Iuz's imprisonment in official game publications use the CY 505 date, the CY 507 anomaly is usually considered to be an error. Known levels The Tower of Magic Surface ruins. The surface ruins are mostly abandoned. They include a temple to Boccob, barracks, storerooms, mess halls, and guest quarters. A large band of kobolds currently dwells in the southern half of this ruin, and elves guard the entrance. During Castle Greyhawk's heyday, the Regalia of Neutrality were evidently stored in the Temple of Boccob here, and were the goal of countless pilgrimages. They are now gone, but something of their power