It was a small miracle that Lachlan had managed to behave around a Clove to the point that the highborn doctor had decided to trust him - a small miracle, and a testament to his skills, which were greater still at manipulation than Fiona would have deemed. His return to Glynn had been a gods-send; that much, she could be thankful to Morrigan for.
"You must make sure to remain in her confidence," Fiona replied, unnecessarily, since Lachlan would know this already. "Learn whatever secrets she learns from its study. Swallowtail wants reports, when we have news."
It would be particularly ironic - in a deeply satisfying way - for one of the Clovennian women Cloves did so like to dismiss to be the instrument to end the sway of Faidoux over Aurelle. It might be nothing but a dream, but even if Viola Rosier could only be of minor help, Fiona would take it. She would take any advantage they might gain on their enemies.