End of time [Poptropica Volume: bk. 4]by Krpata, Mitch 

BTSB Prebound(Amulet Books, 2017)

BTSB #: 533234 Available

Dewey: 741.5/NAges: 8-12   
AR: 3 MG

Genres:

Subjects: Adventure fiction Graphic novels

Summary: In book four, Mya, Oliver, and Jorge must find a way to save the island world since the Protectors' headquarters is in ruins, they have no clue where evil Octavian is, and can't tell if their actions have affected history. In graphic novel format.

Lost expedition [Poptropica Volume: bk. 2]by Krpata, Mitch 

BTSB Prebound(Amulet Books, 2016)

BTSB #: 533227 Available

Dewey: 741.5/NAges: 8-12   
AR: 2.7 MG

Genres:

Subjects: Adventure fiction Maps - Fiction Graphic novels

Summary: In the second book of the series, as Oliver, Mya, and Jorge embark on the next step of their journey, the nefarious Octavian is hot on their trail, and he's determined to get his hands on their magical map. In graphic novel format.