Black hole bandits [Mr. Kazarian, Alien Librarian Volume: Book 2]by Foxe, Steve 

BTSB Prebound(Stone Arch, 2020)

BTSB #: 349562 Available

Dewey: 741.5/NAges: 8-11   
AR: 4.5 MG Lexile: 720 GN F&P: T

Genres:

Subjects: Extraterrestrial beings - Fiction Librarians - Fiction Supervillains - Fiction Black holes (Astronomy) - Fiction Graphic novels

Summary: Mr. Kazarian's evil cousin Kronkhold has a black hole generator, and it is up to the alien librarian and the four students who know his secret to stop Kronkhold before his device swallows Earth, and the rest of the solar system--and get back to Earth in time for TJ, Dani, Shea, and Walden to make their class presentation on Albert Einstein.

Mr. Kazarian, alien librarian [Mr. Kazarian, Alien Librarian Volume: Book 1]by Foxe, Steve 

BTSB Prebound(Stone Arch, 2020)

BTSB #: 349567 Available

Dewey: 741.5/NAges: 8-11   
AR: 4.2 MG Lexile: 660 GN

Genres:

Subjects: Graphic novels Extraterrestrial beings - Fiction Librarians - Fiction Field trips - Fiction Jupiter (Planet) - Fiction

Summary: Mr. Kazarian, the school librarian, is actually an extraterrestrial (with a holographic disguise) studying the behavior of human children, and if he wants to continue his research he will have to find a way to convince the four students who have discovered his secret not to expose him--perhaps by helping their assignment on gas giants with a quick trip to Jupiter.