The Septic Curse

The Septics were having a great October!
Luck seemed to be on their side this month- especially with what happened that day. It seemed like the best year of their lives, until what happened that day... Then, things started getting wierd.
Can Marvin figure out how to get rid of this "curse"?

The Septics are not all a family in this one. (Im experimenting with different relationship types.) Henrik and Chase are kinda like father figures to Robbie and Marvin, but that's pretty much it. The rest is just them being fatherly types in general.