Spectra of the hottest, most embedded sources in our sample. Source 56 (a) is fitted with a 14.7 keV thermal plasma with ﹩N_{\mathrm{H}\,}\sim 3.9\times 10^{22}﹩ cm⁻². Source 147 (b) is fitted with a 11.0 keV thermal plasma with ﹩N_{\mathrm{H}\,}\sim 2.7\times 10^{22}﹩ cm⁻². Source 251 (c) is fitted with a 10.7 keV thermal plasma with ﹩N_{\mathrm{H}\,}\sim 2.3\times 10^{23}﹩ cm⁻². Source 149 (d) is fitted with a 9.6 keV thermal plasma with ﹩N_{\mathrm{H}\,}\sim 3.8\times 10^{22}﹩ cm⁻². Source 108 (e) is fitted with a 8.9 keV thermal plasma with ﹩N_{\mathrm{H}\,}\sim 5.37\times 10^{22}﹩ cm⁻². Source 118 (f) is fitted with a 3.7 keV thermal plasma but a large ﹩N_{\mathrm{H}\,}> 10^{23}﹩ cm⁻². All sources have a reduced ﹩\chi ^{2}< 0.6﹩, except for source 251, which has a reduced ﹩\chi ^{2}\sim 0.95﹩. Residuals to the fits are shown beneath each fit.