[user104658]

There are all sorts of conspiracy theories about poor Madeleine. but I genuinely think she died in an accident that was quickly covered up.

I think they gave her a mild sedative and put her to bed so that they could go out - she got up, groggy, fell and hit her head, they came back and panicked (because she would have had drugs in her system) and covered it with the abduction story.

It's the only explanation I've ever seen that makes any sense at all.

I thought it was far fetched that her parents would have drugged her at first - then was utterly dumbfounded a couple of years ago, when I discovered during a rather heated debate that parents sedating toddlers with low doses of drowsy-antihistamines (for example, on long flights) is horrifically common (apparently I'm very judgemental for thinking it's wrong to drug your perfectly healthy child??).

Now I have no problem believing that two doctors with access to meds would sedate for an evening out, and the explanation above makes even more sense.