German mythology includes the giant Fenrissulfr and Fenrisulfr's children, Skoll and Hati. Fenrissulfr is bound by the gods, but is ultimately destined to grow too large for his bonds and devour Odin. He will have grown so large that his upper jaw touches the sky while his lower touches the earth when he gapes. He will be slain by Odin's son, Viðarr, who will either stab him in the heart or rip his jaws asunder according to different accounts. Fenrissulfr's two offspring will according to legend, devour the sun and moon at Ragnarök. On the other hand, however, the wolves Geri and Freki were the Norse god Odin's faithful pets who were reputed to be "of good omen."