I really dug this adventure (pun intended) the first half of this adventure. I feel like the relationships and dynamics between the TARDIS team are the strongest I’ve ever seen them, and honestly exactly what I want from a 13th Doctor novel. On the other hand, once we get into the classic who style cave runaround for the majority of the novel, I definitely checked out emotionally. Cool book, but I lost interest about halfway through and I never got it back.