A ghost train, lost in Time, hurtles through the night...

Two members of Team 236 are trapped on board. Not ideal under any circumstances but catastrophic when they're at each other's throats.

Hot on their heels, but never quite able to catch up, can Lt Grint and his team overcome all obstacles in their way and save their fellow officers before the train disappears for good?

Nor is TPHQ without its own problems as Matthew risks his sanity to track them through the Time Map. And a Mikey-experiment goes horribly wrong, exposing something better left concealed for all Time. What are the Time Police hiding?