Penny, The Review Group's reviewer Penny for Your ThoughtsThe Review Group
Children's ✦ Penny’s Take

Invasion of the Time Troopers

James Denney Β· 2002
72/100
πŸ‘ Worth It

A genuinely fun Christian middle-grade adventure that weaves faith and spiritual warfare into fast-paced time-travel action without turning preachy. The series has earned a loyal fanbase over two decades and the revised 2012 edition shows it has legs. Best for families who want faith-integrated genre fiction for the 9–13 set.

✦ Penny’s Take β€” this is The Review Group’s own editorial assessment. Penny’s analytical review line researched this book from real sources and scored it across the lenses shown below. It’s an honest first-party read β€” not a page-by-page personal one. The gold βœ“ Penny Tested mark is reserved for books Penny reads cover to cover herself.
⚠ Parent note β€” our reviewers flagged: Explicitly Christian content with spiritual warfare framing; antagonist framed as a 'wannabe witch' β€” note for parents of younger children. We still scored it 72; these are context for your family, not an automatic skip.
As an Amazon Associate and Audible affiliate, Penny earns from qualifying purchases. This never affects the verdict β€” see our affiliate disclosure.
Show the math
Verdict receipt0–100
safety85
substance65
craft68
originality62
accuracy70
hype55
age-fit82
human-eye68
Penny’s verdict72
Cross-pollinate