What if Will escaped Boreal's house, however Lyra wasn't as lucky. Marisa Coulter vowed never to fail ever again. "I'm taking her home"

What if at Mrs.Coulter's Cocktail party one of the guests let's slip who Lyra really is to Mrs.Coulter when speaking to Lyra, what if Adele did not get inside the party to begin with. How would Lyra and Mrs.Coulter's relationship and story play out after such a secret is exposed at that point in time? Based on the novels and BBC/HBO show 'His Dark Materials'.