The Last Cartridge

By Greyjoy Sybil

Leo Santos fixed the breach. He reset the Nullcode, sent SPECTRE home, saved the town. What he didn't know was that his grandfather had built two things: the key to one world, and the blueprint for a way into all the others. The Last Cartridge is the story of Leo finding the second half of Abuelo's work - and the woman who built the other half.

• Format: Paperback
• Language: English
• ISBN: B0GQFFYY6Y
• ISBN13: 9798233331749
• Release Date: February 2026
• Publisher: Scarlett Everhart
• Length: 142 Pages
• Weight: 0.32 lbs.
• Dimensions: 0.3" x 5.0" x 8.0"
• Age Range: 9 to 12 years
• Grade Range: Grades 4 to 7