I liked the idea behind the monster using creepy nursery rhymes and both teams being in the same place but out of phase and having to somehow cooperate to overcome the situation, but I felt it lacked character progression and agency (up until the end they just wander around London finishing the rhymes, it made for cool ambiance but nothing more) and the resolution was somewhat anticlimactic.

The identity of the creature was interesting but underdeveloped so it felt more like an afterthought (unless they show up next)

For me this is the weakest of the three, it was really good though.