Before his death Grandfather had assured the Lawson family there was no need to worry about money for a new water supply system . . but after his death there was no property left to finance it. So Margie and Neale Lawson, his grandchildren, were afraid that they would have sell their horse or their beach front. But some sleuthing, searching and adventuring bring about the discovery of the very valuable letters of a local, deceased, famous artist. Minor variations on a standard theme for this age level-indistinguishable from dozens of others.