In the activity "En attendant Aline (Le Futur Antérieur)"
It's two in the morning, she must have had an accident! Il est deux heures du matin, elle aura eu un accident !
As per my understanding, Futur Anterieur is used for "past" (anterior) events in the future. In this context, there is no future.. They are discussing the possibilities in the past. Could someone else explain. I went through the lessons on Futur Anterieur and did the quizzes. I was able to understand clearly. But this particular activity, I could not understand. Please help.