Archer Magill has spent a lively five years of grade school with one eye out in search of grown-up role models. Three of the best are his grandpa, the great architect; his dad, the great vintage car customizer; and his uncle Paul, who is just plain great. These are the three he wants to be. And now there's a fourth: Mr. McLeod, the first male teacher in the history of the school. But in the midst of it all comes middle school and puberty. Archer doesn't see too far ahead, so every day or so a startling revelation breaks over him. He wonders how much change has to happen before his voice changes. Then a really big revelation comes: he's asked to be the best man at the wedding of two of his role models. Newbery Medalist Richard Peck tells a story of small-town life, gay marriage, and everyday heroes in this novel about a boy on his way to being the best man he can be.