They were preparing to go into the valley below when there was a dull concussion. The glacier over the Frozen Gate rose slightly, then disappeared completely out of sight, leaving a yawning hole in the mountainside. Ice and rocks slid down, filling the hole. The refugees gazed at the scene in fear and wonder.
"They have blown up the gate! And the chambers leading to it!" Senator Mane—now only Leo Mane—said slowly. "There goes our last chance to save them!" His tones were deeply sad. He could not look upon these people as an experiment that Nature had abandoned, although he knew that history is thronged with the shadows of vanished races, culled by the process of natural selection.
But Youth looks only ahead. The majority of the rescued technies were young, and with eagerness and anticipation, they followed Mich'l and Nida Ares down into the valley to build their first homes.