TSIL436 = The Secret in Locker 436
As Mars was once thought to be, Phoenix is crisscrossed by canals. Except for what remains of its desert setting, canals may be Phoenix’s most distinguishing feature. Varying little, pooling a personality, they make soft incisions through what surrounds them. As you jockey through traffic dizzied by small businesses and their signs, numbed by miles of ranch homes and convenience stores, your eyes will ﬂicker coolly down what seems an open tunnel of water. Receding parallels of packed desert sand, twenty feet wide, clean of vegetation, frame an even, sky-reﬂecting ﬂow. Glimpses of joggers and cyclists along the banks indicate that there is still human life without combustion. For all their sterility, the canals command moving water and thus retain more mystery than anything else in the valley. Because they so prominently display what makes a desert city possible, it would seem that to get to the bottom of the canals would be to get to the bottom of Phoenix.
Here’s a map of the ancient water network–