Sharpe's Challenge
Contrary to most parts of the TV series , "Sharpe's Challenge" , as well as the follow-up "Sharpe's Peril" , is not based entirely on one of Cornwell's novels , but it uses and adapts some characters and storylines from "Sharpe's Tiger" . 
<triplet> Sharpe's Challenge <subj> Sharpe's Peril <obj> followed by <triplet> Sharpe's Peril <subj> Sharpe's Challenge <obj> follows