Zoom on the MWL light curves around the VHE flare on MJD 57788. Two first panels from the top show the FACT (> 0.95 TeV) and the MAGIC (> 1 TeV & 0.2–1 TeV) light curves. The FACT fluxes are computed on 20-min binning while the MAGIC light curve is nightly averaged. On MJD 57788 and MJD 57789 the MAGIC exposures are ∼40 min and ∼100 min respectively, and are depicted with the width of the horizontal bars of the markers. Third panel from the top: the Swift-BAT light curve with 3-h binning. Two panels from the bottom: the Swift-XRT (0.3–2 keV & 3–7 keV & 2–10 keV) and Swift-UVW1/UVM2/UVW2 fluxes. The horizontal orange lines show the average flux over the entire campaign in each energy regime. Top panel: the orange line is the average from the MAGIC > 1 TeV light curve. In the two lowest panels, the orange line depicts the average in the Swift-XRT 0.3–2 keV and Swift-UVW2 bands.