I want to love the Sycorax, they deserve a great story at some point. This isn't it. The repetition of of 'Sycorax rock' just feels silly, the whole tone feels off. Like I do get that this is for kids, but even then this feels strange. It doesn't match the vibe we get shown of the sycorax in The Christmas Invasion, at least for me, like there's some of it there but not at all to this extent.

And again, the framing device doesn't work at all, it's meant to be a ship's log, and it works fine as that at the start, but eventually it's recounting the events of The Christmas Invasion as they're happening, so is he writing the log while the events happen?

It just doesn't work for me.