Mature blonde entices youthful damsel Lucy nymph and her brother

In the very first book, a young man and woman watch a meteor flare through the sky. Sets out to seduce someone, fails and then asks her brother's best friend. LPP Convention Hotel represents a homey place and provides cool atmosphere. It has been granted the power of the wizard Shazam, and has but to speak the wizard's name. A little girl is sent to stay with her brother and sister team.