Bethlehem Isaak released his debut book this spring - the autobiography My Life Without You. The book is about growing up without his father.

Swedish-born journalist Dawit Isaak has been imprisoned for over 18 years in Eritrea. As late as this weekend, information came from the Free Dawit Support Committee that the journalist should still be alive.

"We have been able to secure information about it and have a contact chain that makes us feel secure," chairman Leif Öbrink told Dagens Nyheter.

Thus, on Monday, Bethlehem Isaak expresses the same certainty in Summer in P1.

- Yes, my dad lives. And maybe you think, how do you know? This is where the silent diplomacy comes in. I can and must not say more, she says in the program, she says.