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$^{being its marginal closeness to a 85(}$±38)GeV photon. The unprovable association of this single photon with QSO B0133+476 is of interest as its energy is close to the pair absorption EBL limit for the redshift of the object, z = 0 . 859. If true, this association would in- dicate the potential of this source for testing the EBL horizon using Fermi , specially under phases of high 

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emission activity. Our report of near infrared flaring from data taken between JD 2454788 and 2454795 [12] was followed by the Fermi detection report, at a flux level above the EGRET limiting sensitivity [13]. The infrared light curve is shown in figure 6. The ob- ject was caught undergoing a rapid flare which has declined relatively slowly during 2009, but always at levels above 2MASS. 

