Inversion maps of Event B based on Ca II 8542 Å, Ca II K, and Fe I data, in a similar format to Fig. 4, but only showing maps at two heights for each of the Events B1 and B2. The top two rows (B1) show maps for the first snapshot of Event B in Fig. 2; bottom rows (B2): those for the second snapshot. The coloured plus symbols mark locations for which Ca II profiles are shown in the bottom two rows of Fig. 5. For the orange location in B1, Fig. 11 also shows Mg II profile fits.