Here's the breakdown with a hidden stash of flies, a chest behind the lizards, a relic behind the fanatics, and a console. As it turned out, level 113 has a very small respawn point with fierce guards (2 mana monks in each direction and ogre-shamans on the road). The chest turned out to be for the entire first level. I gathered what I could from the respawn point, but I was catastrophically short on money. There was nothing to do at the level 115 respawn point, so there was nowhere to go. I tried to break through the monks with upgraded flies, but there were 19 of them. The opponent auto-attacked, defeated the shamans, and came out onto the road with a bunch of blocks and other junk. The wyverns didn't work, and that was game over.
Thanks for the game!