(3) 4-6 Illustrated by Scott Garrett. Young inventors Nick and Tesla find a new lead in the search for their missing parents. After discovering a traitorous agent, the twins are kidnapped and held hostage to force their parents to convert their solar-powered invention into a weapon. As usual, this sixth series entry achieves an enjoyable balance of mystery, humor, and DIY science projects. Two-color illustrations are included.

Reviewer: Russell Perry

(3) 4-6 Illustrated by Scott Garrett. Inventor twins Nick and Tesla Holt take a break from searching for their missing parents to visit the set of a superhero movie; when a saboteur's pranks threaten to shut down production, the duo teams up with their movie-crazy friends to investigate. Series fans will welcome the returning mix of related do-it-yourself science projects and lighthearted mystery. Garrett's illustrations add energy.

Reviewer: Russell Perry

(3) 4-6 Illustrated by Scott Garrett. Science-minded sleuths Nick and Tesla are still with Uncle Newt while their parents (supposedly) research soybean irrigation techniques in Uzbekistan; these second and third capers up the ante with robotics and spy technology. The books' humor is both smart and silly, and the mysteries are surprisingly complex. Garrett illustrates tense scenes as well as instructions for the twins' experiments, which remain inventive yet simple. Review covers these titles: Nick and Tesla's Robot Army Rampage and NIck and Tesla's Secret Agent Battle.

Reviewer: Susan Graham

(3) 4-6 Illustrated by Scott Garrett. In this fourth zany science-centric mystery, a science museum hires Uncle Newt and his "kinda-sorta girlfriend" Hiroko to fix life-size robot replicas of famous scientists, which are dangerously malfunctioning. But twin sleuths Nick and Tesla and their friends discover that the malfunctions are foul play. Enjoyably chaotic black-and-white illustrations and the included do-it-yourself science experiments combine to make one impressive glove.

Reviewer: Susan Graham

(3) 4-6 Illustrated by Scott Garrett. Science-minded sleuths Nick and Tesla are still with Uncle Newt while their parents (supposedly) research soybean irrigation techniques in Uzbekistan; these second and third capers up the ante with robotics and spy technology. The books' humor is both smart and silly, and the mysteries are surprisingly complex. Garrett illustrates tense scenes as well as instructions for the twins' experiments, which remain inventive yet simple. Review covers these titles: Nick and Tesla's Robot Army Rampage and NIck and Tesla's Secret Agent Battle.

Reviewer: Susan Graham

(3) 4-6 Illustrated by Scott Garrett. When Nick and Tesla arrive at Uncle Newt's for the summer, the twins find a mystery at a long-abandoned house that can only be solved with science. Luckily, their unconventional uncle gives them open access to his laboratory. Along with cartoon-style spot illustrations, Garrett illustrates instructions for the twins' experiments so readers can do them, too. A zany, fast-paced romp for science buffs.

Reviewer: Susan Graham