Not much probably. Other than Janner would not have escaped the Fork! Factory! and would've likely stayed there the rest of his life. Thus, the fane would not have opened and Gnag would not be able to meld himself with Yurgen. Then the Sea Dragons wouldn't likely help the Hollowsfolk and the Green Hollows would've been lost to Gnag forever.
And when Janner was in the Deeps of Throg, he probably wouldn't have been able to go on
Not much probably. Other than Janner would not have escaped the Fork! Factory! and would've likely stayed there the rest of his life. Thus, the fane would not have opened and Gnag would not be able to meld himself with Yurgen. Then the Sea Dragons wouldn't likely help the Hollowsfolk and the Green Hollows would've been lost to Gnag forever.