Here, there, and everywhere

While helping a teenager find a copy of Catcher in the Rye, I noticed a copy of what looked like a fantasy book -- R.A. Salvatore's Immortalis -- shelved in the general fiction. Investigating further, I found that it's part of one of his multifarious multi-volume series. Suburban Public Library, naturally, has one volume shelved in general fiction, one volume in Young-Adult Fiction, and one volume in the SF/Fantasy shelves. I'll not quite sure whether this is an error, resulting from chaotic collection-development and staff turnover, or a deliberate attempt to make Salvatore's sagas more visible to browsers. I suspect the former.