Edmond Hamilton 
Captain Future’s Challenge 

CAPTAIN FUTURE FACES FIERY SOLAR DEATHIt was ten o’clock, solar time, when disaster struck. At exactly the same moment, gravium mines on Mercury, Mars and Saturn were totally destroyed by an unidentified army. Without gravium — the life-blood of interplanetary civilization — the system would perish.Meanwhile, Captain Future struggled on the floor of a moving space craft, his arms and legs bound by steel ropes. He did not know why he’d been captured — only that the system was in grave danger — that he was needed…As Captain Future was plunged through space, towards a deadly orb of flaming gases — the raging inferno of the sun — he planned his daring escape. It was to be the most dangerous gamble of his life.