Full data cube over the whole wavelength range covered in our MUSE observation and the continuum and [O III] emission for size-reduced cubes. Panel a (left) is the image of the full MUSE’s FOV (1′×1′≅402 kpc × 402 kpc) obtained after data reduction. ID 608 is marked by a purple circle. Panel b (centre) shows an inner zoom of the cube (30″ × 30″ ≅ 201 kpc × 201 kpc) with the continuum in blue, extracted from two regions of the spectrum (around [7825, 7900] Å and [8100, 8150] Å observed wavelengths) and the [O III] emission in red extracted from observed wavelengths 7890 Å to 8100 Å. Panel c (right) shows a further zoom (8″ × 7.5″ ≅ 53 kpc × 50 kpc) of the [O III] emission centred on the quasar position. The position of the nucleus of the quasar obtained from the maximum of the [OIII] emission is marked by the red star. The contours in both panels b and c represent 3σ, 5σ, 15σ, 30σ, and 60σ. North is up, East is left.