A shell company set up by Nick Candy, the property tycoon, to target a natural resources deal has been used instead for the reverse takeover of an advertising company run by the founder of Aegis. Mithril Capital Management, which raised GBP3.4 million last year from a stock market listing, will acquire Agenda 21, a Soho-based digital company, for GBP12 million. The company plans to change its name to the less mystical “Be Heard” once its transformation into an advertising business is complete.