Trend Mystery System by Karl Dittmann - full download (PDF files and videos). Trend Mystery is a Forex indicator. The MT4 or MetaTrader4 trend indicator simplifies investing and trading in foreign exchange. FX or foreign exchange has emerged to be more lucrative for professional, semiprofessional and amateur traders. The use of algorithms is common while trading in stocks, commodities and indices. Foreign exchange trading also relies on algorithms but more so…