Aliens in My Garden

ALIENS IN MY GARDEN takes ALDITHA the witch and HARPER (the talking, though not terribly bright owl) from their usual business serving the residents of the Garden on a path that pits them against SKOROS. The would-be evil wizard is useless at magic, great at engineering, has a brass wand, a smart alec who plans to take over the Garden. When a giant teacup lands in their world, they are introduced to CELESTE, a teenaged alien girl (who's really much older than she looks) and ALPHA, her bio-mechanoid co-pilot, who looks like a typical Grey alien.