..old John of Gaunt is said to have been the last of [the giants in Cornwall] and to have lived in a castle on the top of Carn Brea (a high hill near Redruth). He could stride from thence to another neighbouring town, a distance of four miles. I do not know if he is supposed to be the one that lies buried under this mighty carn, and whose large protruding hand and bony fingers time has turned to stone. Here, too, in the dark ages, a terrific combat took place between Lucifer and a heavenly host, which ended in the former’s overthrow.
From: Cornish Folk-Lore. Part II [Continued], by M. A. Courtney, in The Folk-Lore Journal, Vol. 5, No. 2. (1887), pp. 85-112.