Volume 3 of 4 of this series takes us 17 years into the future after the events of Freak City. This short novel deals mainly with Sapphire (from Volume 1 - Snapdragon Alley), now a reporter, returning to her home town to investigate a mysterious wormhole where Snapdragon Alley used to be.
Mysterious goings-on ensue involving both Kirkham brothers as well. It all ends on a cliffhanger before the final volume - which obviously I'll have to read just to see what this was all about!