Frenzy: Robert Liparulo

This was the sixed book of the dreamhouse series. This one starts with a prologue where Xander goes to the world where Jesse is still a kid and tells Jesse David was stabbed by Taksidian. Xander is able to protect David with a metal shield type deal and David survives. They also find the mom and shoved Taksidian back into the portal. The book ends as though there could be more, but it does provide closure if there aren't anymore.