Who's Crossing? is a rhyming magazine story.
Bertie has to wait outside the Sodor Wildlife Park whilst a keeper leads an elephant across the road and through the gates. Then, a kangaroo escapes and hops right across Bertie's path. Luckily, he manages to brake in time and the keepers soon recapture the wayward animal. Next, Bertie comes across some black and white stripes and he has to stop again. It is not an animal, but it is a zebra crossing.
- Bertie is missing his driver in a few of the illustrations.