Full Speed (Book 6)

After a school excursion goes wrong, the twins are left with a sneaking suspicion that the incident was no accident, but before they can investigate, they're whisked away on a Pharos mission to Switzerland! They're tasked with infiltrating the Van Leer family, but it turns out there's more than one mystery to solve.

Series: Kensy and Max
Kensy & Max is a suspenseful, action-packed spy-adventure series for girls and boys featuring a cast of exciting characters, mysterious settings, and family secrets.