>I raised my arms like I was lifting something over my head. My bad shoulder burned like lava, but I tried to ignore it. The river rose. It surged out of its banks, flowing up and then down again in a great arc-a raging black rainbow of water twenty feet high.. The riverbed in front of us turned to drying mud, a tunnel under the river just wide enough for two people to walk side by side.

*pg. 117 Percy Jackson: The Demigod Files (kindle)*