sentences:  The Deedles also learn Slater was behind the prairie dog plague, and then devise a plan, with a little help from a prairie dog named PD, who left the plague and joined the Deedles, to re-divert the water from New Faithful back to Old Faithful, and to escape by donning heat-resistance suits and escaping through the plumbing and through Old Faithful's spout.The plan succeeds.Slater is exposed and arrested with his henchmen, and the Deedles become heroes for saving Old Faithful.