In his controversial and much attacked 1992 book "The Sign and the Seal", British writer Graham Hancock reports on the Ethiopian belief that the ark spent several years in Egypt before it came to Ethiopia via the Nile River, where it was kept in the islands of Lake Tana for about four hundred years and finally taken to Axum. (Archaeologist John Holladay of the University of Toronto called Hancock's theory "garbage and hogwash"; Edward Ullendorff, a former Professor of Ethiopian Studies at the University of London, said he "wasted a lot of time reading it.") In a 1992 interview, Ullendorff says that he personally examined the ark held within the church in Axum in 1941 while a British army officer. Describing the ark there, he says, "They have a wooden box, but it's empty. Middle- to late-medieval construction, when these were fabricated ad hoc."