Spy School King's Cage (Completed)

Ben, Erica, Mike and Zoe have made some new friends over summer break. After nearly getting killed, all Ben wants is a couple of months of freedom from any kind of mission. But when danger lurks around, there's no time for a break. Ben and his friends are sent to Madra, a kingdom far off near Alaska on a mission to protect the royal family after an attempted murder on the king was made by SPYDER.
When Erica suddenly goes missing and there are no traces of SPYDER at all, Ben starts to suspect the people he's supposed to be protecting. Do they really need protection? Or is the protection an excuse and an alibi to plot something even more dangerous?
Sequel to Spy School Takes a turn. I HIGHLY SUGGEST you read that before reading this.

Started: February 23, 2020
Finished: April 25, 2020