▁vol cano ▁is ▁not ▁a ▁safe ▁place ▁to ▁work . ▁▁ 1 1 . ▁The ▁Case ▁of ▁the ▁United ▁States ▁Navy ▁Advent ure ▁( 1 9 9 7 ) ▁Un ident ified ▁flying ▁objects ▁have ▁been ▁seen ▁flying ▁overhead . ▁In ▁this ▁case , ▁the ▁girls ▁get ▁help ▁from ▁the ▁United ▁States ▁Navy ▁to ▁solve ▁the ▁mystery . ▁The ▁" U FO s " ▁ended ▁up ▁being ▁a ▁satellite ▁that ▁was ▁flying ▁too ▁low ▁in ▁orbit . ▁ ▁Comp ilation ▁releases ▁ ▁Other ▁than ▁the ▁eleven ▁episodes , ▁there ▁were ▁two ▁compilation ▁videos ▁made . ▁ ▁The ▁Ama zing ▁Advent ures ▁of ▁Mary - K ate ▁& ▁Ash ley ▁ ▁In cludes ▁The ▁Case ▁of ▁the ▁Sea World ▁Advent ure , ▁The ▁Case ▁of ▁the ▁U . S . ▁Space ▁Camp ▁Mission , ▁and ▁The ▁Case ▁of ▁the ▁Hotel ▁Who - Done - It . ▁ ▁The ▁F avor ite ▁Advent ures ▁of ▁Mary - K ate ▁and ▁Ash ley ▁ ▁In cludes ▁The ▁Case ▁of ▁the ▁Vol cano ▁Myst ery , ▁The ▁Case ▁of ▁the ▁Fun ▁House ▁Myst ery , ▁and ▁The ▁Case ▁of ▁the ▁Log ical ▁I ▁R anch . ▁ ▁References ▁▁ ▁Category : Direct - to - video ▁film ▁series ▁Category : American ▁children ' s ▁films ▁Category : 1 9 9 0 s ▁mystery ▁films ▁Category : 1 9 9 0 s ▁musical ▁films ▁Category : M ary - K ate ▁and ▁Ash ley ▁O ls en ▁Category : Fil ms ▁about ▁tw in ▁sister s ▁Category :