Series
Summary
Seven-year-olds Bradley, Brian, Nate, and Lucy make observations and gather clues that convince them that their older siblings, cousin, and animals have been captured by hungry space aliens. Full description
Series: Calendar mysteries
January joker (Volume 1.)
February friend (Volume 2.)
March mischief (Volume 3.)
April adventure (Volume 4.)
May magic (Volume 5.)
June jam (Volume 6.)
July jitters (Volume 7.)
August acrobat (Volume 8.)
September sneakers (Volume 9.)
October ogre (Volume 10.)
November night (Volume 11.)
December dog (Volume 12.)
New Year's Eve thieves (Volume 13.)