Vortex on Vertu Prime (The Portal Adventures, #3)

The last thing Tania needs is someone else telling her what to do. Her mother does enough of that already! But during a school trip to the museum, she somehow finds herself gaining a bossy, alien teddy bear called Edward, who decides to adopt her.

When Tania, Edward, and her friends Mark and Windracer join Tania's mom on Vertu Station, they are put up in a 5-star hotel on part of the planet's sole remaining arcology; a massive, pyramid-shaped, self-contained city. But after Archaeologists a...