By the hidden effects of Pilar's actions.

Even if Pilar had not sent the Osirian team home safely, after seeing somebody who looked like Pilar - there would still have been enough information for Osirion to identify Pilar Pineda as a student who went missing from Ostenso's wizard academy at the same time as the others, but one who wasn't among the souls being traded highly in Dis.

By the hidden effects of Pilar's actions.

Though if Pilar had not sent the Osirian team home safely, after seeing somebody who looked like Pilar - there would still have been enough information for Osirion to identify Pilar Pineda as a student who went missing from Ostenso's wizard academy at the same time as the others, but one who wasn't among the souls being traded highly in Dis.

By the hidden effects of Pilar's actions.

Though even if Pilar had not sent the Osirian team home safely, after seeing somebody who looked like Pilar - there would still have been enough information for Osirion to identify Pilar Pineda as a student who went missing from Ostenso's wizard academy at the same time as the others, but one who wasn't among the souls being traded highly in Dis.

By the hidden effects of Pilar's actions.

Though even if Pilar had not sent the Osirian team home safely, after seeing somebody who looked like Pilar, there would still have been enough information for Osirion to identify Pilar Pineda.  She's a student who went missing from Ostenso's wizard academy at the same time as the others, though she wasn't among the souls being traded highly in Dis.

By the hidden effects of Pilar's actions.

Though even if Pilar had not sent the Osirian team home safely, after seeing somebody who looked like Pilar, there would still have been enough information for Osirion to identify Pilar Pineda.  She's a student who went missing from Ostenso's wizard academy at the same time as the others, even if she wasn't among the souls being traded highly in Dis.