At the time, Magnus had met Sebastian, and it was clear now how close Isla and Sebastian almost met each other. But they didn't.
He found out from Ava's memory how hard Isla had tried to find him and how seriously Ava had been trying to help her, but they almost always met a dead end. If not, they'd end up in an unmarked grave where slave boys bought by dark mages were buried.
It was just like how Sebastian 'found' Aira died after being used by another dark mage. As if their path was destined to never cross again.
Or something... was deliberately tearing them apart.
If only he knew. If only...
"If only I looked harder," Isla whispered.
Sebastian turned to his side, seeing the specter of Isla standing there, witnessing the same scene in Ava's and Magnus' memory.
"It's strange how the happiest time of my life was spent without you. Now I wonder if it was truly the happiest time or simply... the time of my ignorance of your suffering."