>See my reply to Vesuvius, that was never intended to be cleared by a normal jump. Maybe a bit advanced of a mechanic to introduce in the fifth level. There's actually a similar jump early in the volcanic level across lava, you can just take a shortcut to bypass it though.
I thought this was the only way to do it. I don't think there was any indication or opportunity to discover that you can preserve momentum like that.
>Go to the right from the double-wide fan. There's a horizontal fan that'll push you left towards the lantern. Using the crate is a shortcut.
I tried using the fan a few times, but I couldn't get it to work. It's the first time you come across a horizontal fan, and if you mess up the jump you either go all the way down or die.
>lava jump
The rest of the level was pretty easy, but that one jump is unreasonably hard, again mostly because it's the first time you have to do something like that without being given the chance to get a feel for it in a safe environment.