Still on the catch-up, I finished reading this a few weeks ago…
The 392 by Ashley Hickson-Lovence

I loved this book. The premise is simple: set entirely on a London bus travelling across London and taking place over just 36 minutes.
Switching between different perspectives – covering a range of characters, from the high-flyer to the homeless – uncovering their secrets and ambitions along the way, but tied together through the shared threat of a terrorist attack.
A brilliant idea.
Although a completely fictional piece of work, the roads are real, the locations mentioned are real, giving this a brilliant authentic feel.
I can’t recommend it enough.
Next up: The Family Upstairs