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Sally Magnusson talks to acclaimed nature writer Adam Nicolson about his spellbinding celebration of seabirds in a conversation recorded live at the Edinburgh International Book Festival.

Sally finds out what zombies can teach us about threats, as we perceive them, in the real world with Greg Garrett, theologian and professor of English at Baylor University, Texas; the theme of his latest book 'Living with the Living Dead'.

How civilised are we, and what would it take for us not to be? The Very Reverend Dr Lorna Hood, chair of the charity Remembering Srebrenica Scotland, Dr James Smith, founder & CEO of the Aegis Trust, and Greg Garrett, look at what makes - and threatens - a civilisation.

Art historian Anne Ellis explores the dark crevices of the stolen-art world, as a famous German firm opens its private arts collection.

We take a look around 'Protestimony', an art installation in Edinburgh that has recreated part of the Jungle in Calais, the controversial refugee camp that was dismantled last year.

And the power that video games have in influencing our moral thinking, with Dan Griliopoulos, co-author of 'Ten Things Video Games Can Teach Us', and Cara Ellison, a narrative designer of video games.