Scenario set-up for a non-standard mech mission

An ominous emblem begins appearing in tapestries, paintings, engravings, streets, etc. across the town or city in which the players are staying.

One of Corleone’s commander has come up with an exquisite trap for the newly forming armies of Ignus. The only problem? He needs bait for the trap, and he’s just hit upon the perfect idea…

War has begun, and the troops have begun to move. Lying on the border between Esteov and the God's Spine Mountains, Kerrengen Keep secures the main source of fresh water for the capital of Esteov, Lake Kerrengen.

In the middle of nowhere, followers of nature religions meet for a great festival. Also, the new druid for that region of the world is going to be 'elected'. Not all of the 4 contestants are initiates, however...

A forest full of danger where the danger is not at all where the PCs expect it to be.

While in a deep forest a fairy will take a liking to one of the players.