Take a trip to Stonehenge, keep hold of any valuable items and position the pointer at either the word "GOLD", "STRENGTH", "CONSTITUTION" or "ENDURANCE" and tap the fire button. The druids should continue the ceremony and you will get an extra life without losing any items whatsoever.

Amiga Power magazine says that when you enter Stonehenge and you have to offer a magical item to Danu, click on the Strength (STR) for an extra life. Do this as often as you like.