Someone has been stealing the children's bikes at Gloria Estate, yet there is security day and night. Moss' bike is the fifth now to go missing. Who could it be? The estate children set out to investigate. They ask Fundi Francis, their bike repairer for advice. Is there something that he knows? As it gets harder to catch the bike thief, Mike comes up with a clever plan. Read the story to find out what happens.

Ni siku chache zimesalia shule ya msingi ya Darajani ifungwe. Walimu na wafanyakazi wote wana mkutano wa mwisho wa mwaka. Rehema kiranja mkuu anagundua kuwa wageni wanaofika shuleni si wageni wazuri. Wameingia maktabani na wanaendelea kuiba vitabu. Je, Rehema atapata wapi ujasiri na maarifa ya kupambana na wezi? Na je, atawaweza wezi hao ambao tayari wamepakia vitabu katika magunia? Hii ni hadithi isiyoweza kusomwa mara moja. Anza sasa hivi! Yahya mutuu ni mwandishi wa vitabu vingi miongoni mwavyo: Siri ya Baba yangu kitabu cha kwanza. Mwisho wa Ujambazl, Sungura Hakimu na hadithi nyingine, Wema wa Sofi na Hadithi Nyingine na vingine vingi.