The Secret of the Sphinx – 5978 lego guide 7 years ago BUILDING INSTRUCTIONS FOR 5978, The Secret of the Sphinx, Adventurers Set Number: 5978 Theme: Adventurers Launch Year: 1998 The Secret of the Sphinx – 5978 File Size – 16.35 Mb Description – BUILDING INSTR. 5978Download The Secret of the Sphinx – 5978 building instruction Print Versions Building instructions labeled “NA” or “V39” may be printed on US standard letter size paper Building instructions labeled “IN” or “V29” may be printed on EU standard A4 paper