Comparison of the unfolded spectra of F05189–2524 from the 2001 March XMM-Newton (open triangles), 2001 October Chandra (open squares), 2002 January Chandra (open circles), and 2006 April Suzaku (closed squares) observations. The unfolded spectra were created using the best-fit models to each individual spectrum. Below ~ 1.3 keV, there appears to have been negligible change in flux or spectral shape between the different observations. However, above ~ 1.3 keV, the spectral change is obvious. The iron line is prominent in the Suzaku data, but is not noticeable in the other observations. The best-fit models to the spectrum changed from a scattering-dominated scenario in 2001 and 2002 to a reflection-dominated scenario in 2006. This may be an indication that the central source has faded prior to 2006 or variations in the column density.