Synopsis:
Aunt Angela gives Jennings a bicycle, which leads to a chain of events involving a runaway boat, PC Honeyball, and the Spanish Armada. The Form 3 Natural History Club (Jennings, JCT, Chief Spotter, Frog and Tadpole Dept) threatens to disrupt the smooth running of Linbury Court but its activities are saved by the intervention of a scientific frogman on prizegiving day.