Secret Machines have posted cryptic images on Twitter and Facebook, sparking hopes that the group are teasing some sort of return.Formed by Josh Garza and brothers Brandon and Benjamin Curtis in Dallas, Texas in 2000, the group are are on record as one of David Bowie’s favourite bands. Secret Machines released three critically-acclaimed albums before going on hiatus in 2010, ‘Now Here Is Nowhere’, ‘Ten Silver Drops’ and a self-titled record.Benjamin Curtis left the band in 2007 to work with