Vanquised Ariel's ghost warns the Charmed trio that the demon who got her is a former cat who seeks immortality as a warlock by having his nine lives vanquished -as he's able to return stat- by them, which he keeps forcing one after the other to do, until the Book inspires an cumulative approach. Tired of being unable to actually love as spouses with Leo, Piper decides it's time to move out of the Manor to an apartment they can barely afford, gradually overcoming her sisters' objections, but finally facing her own. The whole conundrum recalls gran's fatal fall and the trio having to come to terms with their altered future, which took years.
—KGF Vissers