@AuthorPaul101@PuffinBooks My son absolutely loves this, put the next book straight on pre-order. Puzzles challenge us both too, so much fun to work out. We think we found a mistake with "s" in the binary code puzzle in story 3, but we're having so much fun reading it all :)
40 minutes in a call queue waiting to have someone explain what's going on with my bill @Plusnet, and the guy pretends he can't hear me until I give up.
Needless to say I had full bars on my phone and could hear him perfectly. First time caller, extremely disappointed.