The Tiny Titans’ treehouse has vanished, and Brainy 5 and Psimon are suddenly wearing suspicious-looking Brainiac Club shrinking badges . . . what could it al

Welcome to Atlantis! With the help of Aqualad and Lagoon Boy, the Tiny Titans seek another location for their long lost treehouse.

"Originally published in single magazine form as Big trouble in Little China no. 1-4."--Indicia.

You'll see what life is like for the very young heroes of Sidekick Elementary and learn what could go wrong when the kids spend an afternoon in the Batcave in t