Spectral-time maps constructed from the Si IV 139.4 nm line for the two pixels (the left panel corresponds to the purple crosses, and the right panel corresponds to the green crosses) plotted in Fig. 5. The dashed horizontal white lines indicate the time-step plotted in that figure. The clear blue- and red-shifts measured at either end of the EUV brightening from the spectra are evident at multiple time-steps throughout the evolution of this apparent EE.