Time Machine · #13
Secret of the Royal Treasure
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Time Machine
Full series details →The series
#1 · 1984Secret of the Knights 
#2 · 1984Search for Dinosaurs 
#3 · 1984Sword of the Samurai 
#4 · 1984Sail with Pirates 
#5 · 1984Civil War Secret Agent 
#6 · 1985The Rings of Saturn 
#7 · 1985Ice Age Explorer 
#8 · 1985The Mystery of Atlantis 
#9 · 1985Wild West Rider 
#10 · 1985American Revolutionary 
#11 · 1986Mission to World War II 
#12 · 1986Search for the Nile 
#13 · 1986Secret of the Royal Treasure 
#14 · 1986Blade of the Guillotine 
#15 · 1986Flame of the Inquisition 
#16 · 1987Quest for the Cities of Gold 
#17 · 1987Scotland Yard Detective 
#18 · 1987Sword of Caesar 
#19 · 1987Death Mask of Pancho Villa 
#20 · 1987Bound for Australia 
#21 · 1987Caravan to China 
#22 · 1988Last of the Dinosaurs 
#23 · 1988Quest for King Arthur 
#24 · 1988World War I Flying Ace 
#25 · 1989World War II Code Breaker Risingshadow
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