It took quite a while for Alan to reach the deepest corners of the trial space. He was walking for hours and hours on end, venturing everywhere there was some light, in order to find a suitable crystal.
He had terrible luck. Whenever he would find a crystal, it would be either too big or too small, or in an inconvenient and useless shape. Some were large as wall, some small as ants. He found some peculiar crystals, which were like armour plates, but he couldn't use them as he had nothing to attach them to his body with.
He did find numerous fist sized crystals, he grabbed some and threw them where the crack was. It was hard to find his way back there. So he would either use his blood to mark the wall or some crystals. Or stack a bunch of fist-sized crystals in an odd manner at specific points. He would pick them back up as ammo.
'Come on...there has to be one!'
