True, true... right now, the characters need to go through the Spirit Plane to get argent, which allows them easy passage into the End of the Worlds, where Aderyn is putting her master plan into action. But now, I'm faced with two problems.
1. The Spirit Plane is boring as all hell. Oh, it's cold and windy and people are dead. I don't know how to jazz it up... maybe have Aurora's folks all be dead... or have Zach and Alex run into their mom (although Alex has seen his mom many a time; he's dead too, you see)... or have something bad happen to Alex. But the last one isn't good, because Alex plays a major role in the sequel and I already have his story fleshed out.
2. I'm faced with a consistency problem. Earlier in the story, without the aid of argent, Sinclair gets the group into the End of the Worlds. But now they need the stuff. What I'm thinking is that it was actually Aderyn doing that (as both Lovell and Sinclair were under her control at the time), or since he completely forgot the incident, he forgot how he did that.
What I like to do is have a vague idea for the ending, but not actually know what happens how. That's not fun.