It starts off with an engaging premise and some teasing ideas that hint at some very interesting places the story could go. The entire second act is mediocre, though. It drops the most interesting ideas from the first act and instead presents a generic jungle adventure. Very little in the second act is allowed to linger or create ongoing tension. It's just a sequence of happenstance events. The one exception feels forced. It all seems like a series of vignettes designed to check boxes on the 'teen protagonist character development checklist'. The conclusion is functional but rushed and predictable.