After a successful haul of 15 crystals plus the one that Quinn had obtained. They decided to head back to the Shelter. But instead of telling others of the beast, he had killed. Quinn decided to keep the crystal for himself in the system.
All crystals that were handed into the military base would be counted toward their points. However, the military would keep ten percent of whatever they gave in to be counted. So instead Quinn decided to keep the crystal inside his system, where it couldn't be found and sold later.
Just as Del had said to them. The sun was still burning brightly, and it didn't look like it would set any time soon, but they knew they had been out for at least 6 hours. Travelling to the location and getting ready beforehand, it all took a long time and was quite draining.