The children of Walnut Grove pool their Sunday school funds to purchase an expensive Bible for Reverend Alden's (Dabbs Greer) birthday present. Entrusted with the money, Laura (Melissa Gilbert) and Mary (Melissa Sue Anderson) attempt to double the amount by purchasing, then selling, a supply of patent medicine. Alas, the scheme backfires, and the girls are left without a cent -- and the reverend's birthday is rapidly approaching. ~ Hal Erickson, Rovi
