I find myself agreeing that
Greenie is likely the Ringbearer, due to the fact that she frequently asked about the role on Day 1 and later, in a list of suspects, she frequently mentions things like "No bells
ring."
My comment earlier regarding
Rikae taking the heat off the actual ranger was due to the fact that during her banter yesterday, she jokingly claimed to be the ranger. It's possible the wraiths attacked her
thinking she might be serious.