The Grange at High Force is a children's novel by Philip Turner, published by Oxford in 1965 with illustrations by William Papas.
Much of the story takes place on the moors above the fictional town of Darnley Mills, over the course of a year, from one spring to the next, covering the period of the Admiral's tenancy at Folly Grange.
The same day, the three friends set off to explore High Force on the moors, to see the waterfall and the tiny abandoned church of Little St. Mary's.
Plans to fire the cannon are scotched by the police sergeant, until an opportunity arrives just before Christmas, when they succeed in sinking a makeshift raft.
An exceptionally heavy snowfall cuts off the moor, and even with a snow plough it is a struggle to return to the Grange through the deep drifts.
The novel ends with a two-gun salute, as the Admiral and Guns set off in the spring in their new boat to explore the coastline of the British Isles.
Its unlikely mix of subject-matter, its juxtaposition of the comic and the serious, the characters' forthright approach to work, play and peril, are all "part of the absorbing business of living".
Crouch deprecates the lively caricatures because Turner's fictional characters, although amusing, are not the figures of fun Papas depicts.