Abstract
We present a multi-wavelength analysis of the very fast supersoft source, MAXI J0158-744, which was subsequently identified with a Be star in the Magellanic Bridge. X-ray spectra are indicative of a nova, and we propose that the brief, hard X-ray flash is a result of the interaction of the ejected nova shell with the B star wind. MAXI J0158-744 is only the third Be+WD system known in the Magellanic Clouds. The properties of MAXI J0158-744 give weight to previous suggestions that supersoft sources in nearby galaxies are associated with early-type stellar companions.