And why would the Seleighe take him without telling her?

Do not start taking a new medication without telling your doctor.

We took wood from my father's timber yard, without telling anyone.

Do not take this medication without telling your doctor if you are pregnant.

Also, the fact that she took it without telling him is the real interesting question...

I asked him not to take Jiro anywhere again without telling me first.

Do not stop taking these medicines without telling your doctor.

And how dare she take Lissa without telling him where they were going.

Do not take this medicine without telling your doctor if you are breast-feeding a baby.

He must take the King's place, without telling anyone else.