Re: V4641 Sgr: rebrightening! The light curve on June 4 taken at Ouda shows a large (amplitude=1.2mag) hump and many 0.2mag-small flares. The large hump has a peak at about June 4.65UT and a duration of ~3 hr. The small flares looks have a weak, but characteristic periodicity (50-100s). After the object experienced the hump, it returned at quiescent level. Follow-up observations are encouraged since amplitudes of modulations seem to become larger with time. Regards, Makoto Uemura