Translation:When they came to the hospital the child was already dead.
The weird, horrific, strange seem to stick in my mind more easily than just bland old sentences easily forgotten, so I'm not complaining :) I took a memory course years ago and one method for good recall was to associate imaginative, weird imagery, which I found actually worked.
You want teckna för Duo Plus, unless you intend to actually write your signature on it. Alas, I think that "bairn" isn't a great candidate for inclusion under the current system, since there are roughly one kazillion sentences using barn and each would have to be updated manually. If Duolingo ever updates their system to something that would facilitate this, then why not. :)