"Thank you."
She can update them both together (she's already described the tactics she saw the assassins using to Elliane at length, and had Berengere supplement). They only have the two horses, but two people could ride each, or they could acquire another two before setting out... The point to retreat to if they're near or past the halfway point and can't get to Chorrol is this village here... Vampires rumored in this area, attacks reported along these stretches, last she spoke to a guard the estimate was at 'not very powerful', and hopefully they'll leave a large party alone... This village near Chorrol is universally hostile and apparently doesn't care about the size of a party, but they're normal mortals probably and should be asleep...