Cover of the seventh volume of the English release of the Gunslinger Girl manga series
Claes takes Petrushka around the Agency compound, but when Petrushka puts on Claes' glasses, Claes does not respond well. Claes is allowed to leave the compound on "vacation" to Lake Maggiore on the Italian-Swiss border. However, two bomb smugglers are detected trying to escape to Switzerland and Claes and Petrushka are sent to stop them. The people caught in Lake Maggiore were trying to kill the prosecutor trying the case of the people who killed Jean and Jose's family. Triela and Hilshire join Petrushka and Alessandro as Prosecutor Guellfi's protective detail and must try and prevent an attempt on her life.