Out Of This World

Description for OUT OF THIS WORLD by Lawrence Watt-Evans:

WHEN WORLDS COLLIDE

Like most suburbanites, Pel Brown had problems in his basement. But his were somewhat out of the ordinary: a portal from a world of magic had opened, and now barbarian swordsmen were demanding that Pel help them defeat Shadow, a dark force that was taking over their world.

On the other side of town, a spaceship had crashed in--and trashed--Amy Jewell's backyard. Now the Galactic Empire wanted Amy's help against the Shadow that sought to rule their world.

Pel Brown and family, along with Amy and companions, went through the portal in his basement to peek at the world of magic, just for a second. Then Shadow attacked, and the portal back to Earth closed. The only escape from that world was through a portal leading to the Galactic Empire...

Pel realized that things were not going to work out the way they did in movies. This was no game, no fantasy. This was for keeps. Pel Brown and company soon found themselves entangled in escapades that would make heroes out of common men--and corpses out of heroes.

This is #1 in The Three Worlds Trilogy.