Human-alien encounters -- Juvenile fiction. Extraterrestrial beings -- Juvenile fiction. Friendship -- Juvenile fiction.

Camping -- Juvenile fiction. Human-alien encounters -- Juvenile fiction. Scully, Dana (Fictitious character) -- Juvenile fiction. Mulder, Fox (Fictitious character) -- Juvenile fiction.

Teenagers -- Juvenile fiction. High school students -- Juvenile fiction. Superheroes -- Juvenile fiction. Ability -- Juvenile fiction. Extraterrestrial beings -- Juvenile fiction.

Human-alien encounters -- Fiction. Imaginary wars and battles -- Fiction. Science fiction.

Human-alien encounters -- Fiction. Imaginary wars and battles -- Fiction. Science fiction.

Life on other planets -- Fiction. Planets -- Fiction. End of the world -- Fiction. Dystopias -- Fiction. Survival -- Fiction.

Human-alien encounters -- Fiction. Interplanetary voyages -- Fiction. Adventure and adventurers -- Fiction. Mice -- Fiction. Science fiction.

Human-alien encounters -- Fiction. Life on other planets -- Fiction. Imaginary wars and battles -- Fiction.

Human-alien encounters -- Juvenile fiction. Space warfare -- Juvenile fiction. Imaginary wars and battles -- Juvenile fiction. Film novelizations.

Human-alien encounters -- Comic books, strips, etc. Science fiction comic books, strips, etc.

Interplanetary voyages -- Juvenile fiction. Space ships -- Juvenile fiction. Human-alien encounters -- Juvenile fiction. Life on other planets -- Juvenile fiction.

Human-alien encounters -- Fiction. Antarctic Ocean -- Fiction.