Threethingsarecertainaboutbasejumping.Youwillbreakyourbones.Youwillwatchyourfriendsdie.And–ifyoudoitlongenough–itwilleventuallykillyou.Inthisheady,testosterone-packedenvironment,adrenalinejunkieKarinaHollekimisregardedasoneofthebestofthebest.WefollowKarinaforseveralyearsasshehurlsherselfoffincreasinglytreacherouscl..eee …