Sleep. Sleep is good. Rests the brain, revitalizes the body, and so on. Unless it’s of the enchanted variety, the kind that you don’t wake up from on your own, which is exactly what has befallen the Astral Academy in Trine 4: Melody of Mystery. Not good! Hopefully, Amadeus, Pontius, and Zoya will be able to do something about this conundrum.
See, while I have no doubt all the students are enjoying the downtime, trapped in a variety of dreamlands… they do have to wake up at some point, ya know? And if our trio of heroes don’t resolve the problem of a mischievous mysterious spirit – I’m sure you can imagine the rest.
With a mysterious spirit on the loose, it’s best to call the Heroes of Trine to see what they can do to bring back Cornelius and his fellow students from their enticing dreamlands.
So brush up on your puzzle platforming skills and get ready for six all-new levels, set in locales only available in the land of dreams (no, really). Oh, and you’ll likely need every last one of the new skill upgrades to deal with the additional gameplay elements in Trine 4: Melody of Mystery.
When? Well, ‘soon to PC and in Spring 2021 to consoles’.
(Source)