Sauruses in Quest for Glory 2 were described as being fearsome and loyal steeds. While yours being an abject coward was part of a plot point, there's no reason why your replacement (the one you get to travel to Raseir on) should balk at combat. That's why this troper considered it a Crowning Moment of Awesome when the unofficial remake allowed you fight on Saurus-back when you got to Raseir.
I always thought it was there as a joke. But your comment has inspired me to go play the remake, which I've downloaded but haven't gotten around to yet.
Also in Quest for Glory 2, if you wait around for too many days after beating the four elementals, you lose the game, and the game over screen shows Iblis getting free. But hold on a minute! In order to do that, the bad guy has to get you to open the cave. Yet, if you were lazing around in Shapeir, you wouldn't have been around for him to do that. So how come it happens?
That's kinda why the Fan Remake forces the Raseir journey when your time in Shapeir is up.
QFG4. Am I the ONLY person who has a issue with the ending? Am I? I'm sorry but having used all of the rituals to start the rebirth of one of the greatest evils for that area, and freeing the ONLY THING HOLDING IT BACK somehow equals it dying and the world saved? Really? Because I want to know if I missed something here that somehow changes the fact that you never stopped the main problem in the first place.
Erana uses her powers to make the main problem go away forever.
And if you read the journal in the Adventurer's Guild, this is further explained.
Baba Yaga explains the rituals have two purposes. Their main use is summoning an Eldritch Abomination. However the incantations listed in the rituals can also be used to banish it, but only a very powerful wizard can achieve that. Your job is merely to collect the rituals and then free a powerful wizard with the skill and willingness to utilize their secondary use.
In QFG4, the townsfolk complain about how they've been cut off from the world for years, and yet Dr. Cranium somehow managed to go to Spielburg to pick up some Antwerps last Spring (who heard of some hero who freed Spielburg from Brigands, namely you). It would have been nice to hear about some flying machine or boat he used to navigate out of there that got smashed or something, or a friend that picked him up, that the rest of the town either hate him for hoarding it or simply consider being trapped in Mordavia with all the horrors a safer alternative to travelling with Dr. Cranium.
It's really best not to think too hard about Dr. Cranium's very existence.
I always thought Dr. Cranium was there as an advertising spokesperson for The Castle of Dr. Brain, which was made by the same people that did most of the Quest for Glory series, Lori and Corey Cole.
Fridge Brilliance: Someone in Mordavia does indeed have a "flying machine"... and has recently been to Spielburg in the recent past: Baba Yaga and her flying hut. Maybe she and Cranium worked out some kind of deal, or she snatched the baby Antwerps up for snacks, only for them to escape upon reaching Mordavia and fall into Cranium's hands?
Or it may be that his skepticism is strong enough to suppress the undead and search for a path through the swamp undisturbed.