- You may be looking for another bus.
The number 73 was the bus that Matthew Corbett took Sooty, Sweep, and Iris Wildthyme on to arrive at the seaside in the latter half of the 20th century. Initially, Matthew mistook Iris's bus for the number 73 when she first arrived. (PROSE: It's Raining Gin [+]Jon Arnold, The Curse of Fanfic! (The Curse of Fanfic!, Obverse Books, 2020). Pages 134, 136.)