The thing feels scrappy enough to give it a lot of leeway, from its handsome, if modest, production design to the sparse use of effects. The scares are sufficiently eerie for little kids, even if they won’t move a sufficiently skeptical grownup. The central mystery attempts a few twists and turns, but the final act depends on a twist so out of left field it literally comes from the film’s vestigial baseball subplot. But most of all, it feels like a stopgap kids’ adventure for those tots still waiting for the last season of Netflix’s blockbuster show to air, which is both its blessing and its curse.