Well I'll be pickled!
I just finished 'Declare,' searching among what I haven't read of his for another Dinner at Deviant's Palace or Anubis Gates... (Declare was quite good if a tad too long; it makes a very interesting counterweight to Alif the Unseen... not to mention Sweet Tooth... both of which my book group happen to read as brackets around it on my book shelf...). And Iappreciated much in 'Hide me among the graves' -- not least for their similarity to TAG.
But neither was fully up to that standard, for my tastes. TAG remains tied with DaDP for most most fave. (I'm a fan of latter-day Blaylock as well, but though I enjoy the St Ives thrillers, likewise nothing quites hit it for me like the old skool Digging Leviathan or 'Balumnia' books...)
I can't imagine how they'd stage this... but by god if they do a good job, I'll bring the girls to London to see it!
Pls keep us posted BB.