A Scout makes his way across fields, in the dark, and on hearing his leader's whistle, shows a light from a lantern for five seconds. He remains there, but hides the light, and the rest of the Scouts estimate how far away and whereabouts he is. Then they set out to where they think the light was shown and each one tries to get there before the others. The lantern-bearer hands over the lantern to the Scout who first reaches him, and then it is that boy's turn to go away and show the light. The Scoutmaster should note the various estimates propounded by the Scouts, and though he may be unable to discover the exact distance he should know which Scout gave the nearest figure.