Are these places real, or mere dream? Are they illusions, tricks of the mind, fata morgana, that the angler imagines might exist? These green pools, where the brook trout are even greener, that can be glimpsed just around the bend? The small stream fly angler is the fool who is ever in search of the perfect pool that no one knows about, hidden away in a brook everyone else ignores. Still, sometimes, the angler is lucky and stumbles upon that place that is ever-changing, elusive.