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The Substitute Network #1: Classified
Paperback
Publisher: Jaymes Mercer
Published: Jun 11 2026
Pages: 242
Weight: 0.63
Height: 0.55 Width: 5.50 Depth: 8.50
Language: English
When the teachers are out, the spies are in.
Theo Reyes, age 12, thought his first day subbing for math class would be bad. Then a secret agency recruits him during a fire drill.
Now he's a substitute teacher by day... and a substitute agent by also day.
His mission: stop the PTA from hacking his middle school.
Armed with a hall pass that opens any door, a best friend who weaponizes Shakespeare, and a C- in French, Theo must go undercover before the bell rings on Zero Period.
Rule #1 of AEP: Never break character.
The Substitute Network: Classified is a fast-paced, laugh-out-loud middle grade spy novel packed with mystery, secret agents, school espionage, clever gadgets, and nonstop adventure.
Perfect for readers ages 9-12 who love humorous spy stories, detective mysteries, and action-packed school adventures.
Book One in the Substitute Network series.
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