Mitch Krpata 
End of Time (Poptropica Book 4) 

Following the epic penultimate conclusion of The Secret Society, Oliver, Mya, and Jorge find themselves at an impasse: The Protectors‘ headquarters lie in ruins; the nefarious Octavian is nowhere to be found; and they have no idea how their tampering with the timeline of Poptropica might affect history. As our heroes band together to save the mysterious, uncharted island world and find a way home, they are reminded of crucial events from their pastsincluding how they were transported to Poptropica in the first place. The trio suddenly finds itself in the heart of Poptropica, where the Protectors discover the nexus of all time and are offered the opportunity to see what their lives would be like if they could change just one thing from their pasts. But will they choose to go down these alternate paths? Filled with heart and humor, this is the breathtaking finale Poptropica fans have been waiting for.