Marjorie Weinman Sharmat

Nate the Great searches for a missing weed after it disappears from a pot on Oliver's porch.

"Nate the Great and his dog, Sludge, would like to take a break from detective work, but new cases, cases they do not want, await them"--

A friendly competition to grow the best organic garden is underway. The prize is tempting--a ribbon, a photo and article in the newspaper, and some all-you-can eat favorites from Ned's Diner! Esmeralda, Annie, Oliver, and Rosamond are among the competitors. Just a few days before contest judging, some of Rosamond's tomatoes go missing, and Nate and Sludge are called to investigate. Who is eager for tomatoes, and why? Nate and Sludge are on the case...