As the band gets ready for its regional competition and the science fair approaches, Holly begins to question her feelings for Owen.

Geronimo Stilton's ancestor, Geronimo Stiltonoot, investigates a witness's claim of a moving mountain of ice.

Professor Greenfur, the onboard scientist on spaceship MouseStar 1, has changed color from green to... orange! What's going on? To find out, the spacemice travel to his home planet of Photosyntheson. There, they learn that all of Professor Greenfur's relatives are being threatened by the nibblix, tiny aliens with very sharp teeth! Can the spacemice help in time?

"Time is coming apart. Countless alternate and parallel realities are under attack, weakening and collapsing from relentless onslaught. If left unchecked, the universe faces an unstoppable descent toward entropy. Scarred and broken after decades spent tracking this escalating temporal disaster, while battling the nameless enemy responsible for it, an old friend seeks assistance from Captain Jean-Luc Picard and the crew of the Starship Enterprise....

The future is at war with the past. A ruthless enemy spreads fear across the galaxy, leaving devastation in its wake. Captain Benjamin Sisko and Vedek Kira Nerys share a terrifying premonition of an unstoppable apocalypse. Captain Jean-Luc Picard is forced to take matters into his own hands when Starfleet Command refuses to challenge the invaders. In the burning skies of the Bajor system the price of survival is an act of destruction beyond all reason--...