For Lance, the incursion of monsters and a magical shop isn't as much of an apocalypse as an inconvenience.
Coming back from archery practice, Lance and his club are in the right place and right time to deal some mayhem for the spawning monsters. But just killing them as they come out of the portals isn't enough.
They're going to have to go in and finish the job.
Dungeon Incursions is a slow-moving apocalypse, where the system doesn't lead to societal collapse but changes in civilization itself. Not solo OP MC but team-based dynamics. Fans of post-apocalyptic and apocalyptic LitRPG fiction like Primal Hunter and Defiance of the Fall will be thrilled!
This includes books 1 through 5 of Dungeon Incursions.
