"When a mysterious boy falls from the sky, friends D.J. and Gina must discover the secrets of his identity and help him save the world"--

D.J. and his friend Gina are totally normal kids. Until a mysterious boy comes crashing down from the sky and nearly blows up their club house! Hilo doesn't know where he came from, or what he's doing on Earth (or why going to school in only your underwear is a bad idea!) but he's starting to think he might not be the only alien to have crash-landed on our planet. Can the trio unlock the secrets of his past? Can Hilo survive a day at school? And are D.J. and Gina ready to save the world?

Hilo and his friends must save the world from monsters from another dimension.

When we last saw our INTREPID TRIO, Gina had been sucked into a mysterious portal to who-knows-where. But friends don't let friends disappear into NOWHERE! It's up to D.J. and Hilo to follow her! Will there be danger? YES! Will there be amazing surprises? OF COURSE! Will Gina end up being the one to save them ? DEFINITELY! With the help of Polly, the magical warrior cat, the friends will have to battle bad guys and face disgusting food, an angry mom, terrible knock-knock jokes, powerful magic, and more! Will they survive and make it back to Earth before the portal closes again?

Hundreds of years ago, magic disappeared from Earth. At least, it had ... until now. When giant magical beings begin appearing on Earth, it's up to Gina, Hilo and DJ to save the day. But not because Hilo's from space. Nope! Because Gina can see these magical beings - and better yet, she can even do magic herself! But as powerful as magic can be, it can also be dangerous, especially when the whole world's in jeopardy! The seventh book in the action-packed, laugh-out loud bestselling graphic novel series perfect for young readers aged 8-12.

After discovering the truth about how he lost his memories and Dr. Horizon's true identity, Hilo goes back to Earth and tries to prevent Razorwark from destroying the world--and everyone in it. Being a hero isn't easy. But Hilo had no idea it would be this hard. Hilo came to earth because he was running from Razorwark. But he's done running. Razorwark has come to earth. And the time has come for one final face to face showdown. What happens will decide the fate of the robot world and Hilo's future. The sacrifice will be great. But with Izzy's help, Hilo finally knows what he has to do. Because THIS is how all the pieces fit.

Sometimes the world needs to be saved. And sometimes, there's only one person brave enough to do it. Gina is that person. But she can't do it alone. With the help of old friends DJ and Hilo, as well as one warrior cat - and one warrior cat's annoying little brother, and also one flying Bearacat - and a whole world that believes in her, she might just have a chance. Prepare for more magic, more monsters, more action and more laughs, as you join Gina on her time-turning quest to save the world once and for all! The ninth book in the action-packed, laugh-out-loud bestselling graphic novel series perfect for young readers aged 8-12.

Oops! Turns out magic really is dangerous - to save the world, Gina has transformed it into a strange and scary place. The question is . . . can they turn it back?? The world's timeline has been turned upside down, and Earth is completely different. Magic is the norm, strange magical creatures are everywhere and D.J.'s family seem to have disappeared! Gina has to fix things, and fast! With D.J. and Hilo's help, can Gina dodge disaster and find the key to turn the world back to the way it was? The eighth book in the action-packed, laugh-out-loud bestselling graphic novel series perfect for young readers aged 8-12.

Hilo was supposed to save everyone . . . but what if it's HIM that needs saving?! Everything Hilo thinks he knows about his past is about to be turned INSIDE OUT and UPSIDE DOWN! What really happened on Hilo's world before he came to Earth? It's up to Hilo and D.J to take a DANGEROUS trip to Hilo's home planet to find out! Is ANYONE who we think they are? And can Hilo and his friends figure it all out before it's too late?! The fifth book in the action-packed, laugh-out-loud bestselling graphic novel series perfect for young readers aged 9-11.

Mega Robot Monsters are suddenly waking up all over and they're too big and too strong for Hilo to fight on his own! Luckily, he doesn't have to! He has Gina and some brand new super powers on his side! Being heroes can be super fun-but it can also be super dangerous! The closer Hilo and Gina get to saving their world from the monsters, the closer Hilo gets to the dark secret of his past...