According to the agency's Web site, the Blythe Agency is now closed to submissions. The agency is listed in the 2008 GLA; writers should not query unless the agency changes its submission policies. The agency's home page says the following:
As of July 2007, The Blythe Agency is no longer active.
Though we continue to work on behalf of our current clients,
we will no longer represent new work.
The Blythe Agency