[He approaches privately, mostly becasue Kel didn't want Sunny to get upset, earlier, but he also wants to talk to adults in a more serious way.]

Hey doc. Just one question... how do you know if you're missing a memory? [He's just whispering, there.] Like, I wouldn't know if I wasn't from the same place as Sunny and Mari, so they knew someone from.. before.

And about the wraiths... do you think that's what we risk to become, eventually? Because we are losing a bit of ourselves every step we take, from what I see.