The Glowing Ice

Alexander often jokes with his cousin, Ellsworth, that the spots
of light reflected on his bedroom wall look like two eyes watching
him. The boys soon find out this is not far from the truth, as
their grandpa whisks them off into a world where shadows and
reflections are alive.
With their new reflection friends, Alex and Ells dive to underwater
castles and soar on raindrops. But in this magical world, all is not as
it seems. A dark shadow has plans to escape his form, and in doing
so, he could destroy not only the world of shadows and reflections
but also the world Alex, Ells, and their grandpa call home.