It's nothing really! A little trick I learned back in my younger days! [ And it would be called magic~ ]

[ A few more moments and there's the sounds of twigs breaking as he builds a makeshift fire. There's a 'fwoomp' sound from the transmission. He's currently holding his journal in one hand and a ball of fire in the other but shortly afterward crackling signifies that the fire has been started! ]

Well that should do it! Just look for the smoke.