Nailah Folami Imoja's novel Pick of the Crop (Heinemann, 106pp., paperback, 0-435-98966-9) opens with a familiar, Bajan, boys-on-the-block scene, complete with spliff and tamarind tree. For a book geared toward young adult readers, this is somewhat surprising. There is the obligatory condemnation, which comes from our hero, Leroi Baines, even as the young offenders puff on. "I don't know why y'all always burning out wunna brains with that junk..." and "Wunna need to try and keep you mind and body clean. How you expect to get ahead?" But the first few pages resonate with other