Jimmy Buffett, bestselling author of "Tales from Margaritaville" and hero to "parrotheads" everywhere, flies back into view with a novel set in the Caribbean, involving a lighthouse, a mystery, a wild cast of characters, and more than a few bottles of tequila. Raucous, wise, and familiar with the world's wonderful strangeness, "A Salty Piece of Land" is the escapism at its best.