The blue angel

<blockquote><i>This is a story about winter…</i></blockquote> As the Doctor becomes involved in affairs aboard the Federation Starship Nepotist, his old friend Iris Wildthyme is rescuing old ladies who are being attacked by savage owls in a shopping mall. And, in a cat’s cradle of interdimensional corridors lies the Valcean City of Glass, whose King Daedalus awaits the return of his Angel son and broods over the oncoming war…