Well, not where Leareth can see them.
He'd said it to himself, at one point, that Leareth had probably done just about every awful thing you could think of, and possibly some that he hadn't thought of. If you had asked him 'has Leareth killed children' he would have said certainly yes, and if you'd asked 'has Leareth had children he never saw because they were part of an elaborate scheme that didn't require them to have a father' he would've said quite plausibly and if you'd asked 'has Leareth killed his own children' he would have said that it seemed entirely possible, and if you had asked him 'has Leareth forced people to bear him children with mind control' he would - actually, he would have guessed no, on that one, he didn't know you could do that -
- not enough imagination, that keeps happening -
- and it's easy to say "he has probably done just about every awful thing you can think of, but I'm still on his side" if you can think of awful things, but apparently he is significantly impaired in this because he could've listed awful things for Years and Years and Years and not thought of that one, because it doesn't even give him a pointer to what other awful things he isn't thinking of -
"I -" am going to go deal with some important prince business, but that's a transparent lie and even if he could pull it off he owes Leareth better than that - "I want to go sing."