The four venues had been given names, so I attended my first panel of the day in Narnia, a.k.a. Uxbridge Library, where there was Turkish Delight on offer, then headed to Waterstones/Wonderland before spending the rest of the day in the Civic Centre's Middle Earth and Ministry of Magic suites.
I heard authors talk about rewriting and editing, magic, feminism, sci-fi and the difficulties of having murders in a children's book. I came away with a lengthy To Read list, including Simon Mason's Running Girl and Barefoot on the Wind by Zoe Marriott.
On Sunday it was off to the very lovely Unicorn Theatre for Wild Wolves, at which two authors who have written books with wolves in talked about their research and experiences. (William Grill's book The Wolves of Currumpaw is based on Ernest Thompson Seton's short story Lobo, and he's also written a book about Shackleton; I need to check both these out!)
At the end of the talk, a sweet and sleepy Labrador guide dog came on stage and the audience was invited to draw her in charcoal.
TL;DR version: there are great things happening in young people's fiction, and young people are reading it avidly. Good news!