i mostly played ds games as a kid but for some reason this pc game that i used to play at my parents’ enormous iMac G3 comes to mind. it’s a point and click adventure game where you’re a little anthropomorphic detective fish with a sidekick named luther (nothing funnier to a seven-year-old than a fish named luther). i think the one i played was freddi fish and the case of the haunted schoolhouse, which was juuuust creepy enough to interest me while still being age appropriate
but maybe play frog detective 1: the haunted island and 2: the case of the invisible wizard first. the payoff will be better this way, but third is best!
I know I still have this somewhere and I'd like to get it out and play it again for nostalgia's sake. I probably played it a million times as a kid even though it was the same story over and over lol