Victor Appleton 
On Top of the World [EPUB ebook] 

High elevations equal high stakes for Tom! Tom is headed to Mount Everest. Not only will he get some sweet practice time in on his new foil kite snowboard, but he and Bud are going to put his latest inventiona robot Sherpato the test. At Eversts high elevations they will really be able to run the Sherpa through its paces. But Tom cant quite focus on the tasks at hand because while there are always rumors of the mysterious Yeti, Tom thinks hes seen one. And whats more is that theres a nasty bunch of hunters on the prowl to capture the yeti at any cost. Tom knows that some things are better left a mystery and vows to do what he can to protect this natural environmentand any mysterious species inhabiting it.