Editing Encyclopedia Brown (section)

==Solve-It-Yourself Mystery Sweepstakes==
From January 15 to June 30, 1989, a special Solve-It-Yourself Mystery Sweepstakes was held in conjunction with the Encyclopedia Brown books and [[Bantam Books]]. In the back of specially marked copies of ''Encyclopedia Brown and the Case of the Treasure Hunt'', Sobol presented an unsolved mystery for the contestant to solve and submit an answer for a chance to win a prize. The mystery for the contest was called "The Case of the Missing Birthday Gift", wherein Encyclopedia had to solve the case of a stolen bicycle that was given as a birthday gift to Willie Grant on his tenth birthday. The Tigers make an appearance as the suspects in the case; Bugs Meany, Jack Beck, and Rocky Graham all show up at the Tigers' clubhouse.{{citation needed|date=January 2015}}

Contestants were allowed to enter as many times as they wished, provided they used a separate envelope for each entry. The sweepstakes was only available to US and Canada residents. No purchase was necessary, as one could either use the official form in the back of specially marked copies of ''Encyclopedia Brown and the Case of the Treasure Hunt''<ref>{{cite web|url=http://img829.imageshack.us/img829/7115/treasurehuntw.jpg |website=ImageShack |title=Image of the specially-marked cover |url-status=dead |archive-url=https://web.archive.org/web/20151018183052/http://img829.imageshack.us/img829/7115/treasurehuntw.jpg |archive-date=2015-10-18 }}</ref><ref>{{cite encyclopedia|encyclopedia=Encyclopedia Brown and the Case of the Treasure Hunt|title=Specially-marked cover|date=February 1989 |isbn=9780553156508 |url=https://www.amazon.com/Encyclopedia-Brown-Case-Treasure-Hunt/dp/B001BUCW3G/ref=tmm_pap_title_1?ie=UTF8&qid=1367936070&sr=8-1|access-date=2017-08-31|archive-date=2020-11-16|archive-url=https://web.archive.org/web/20201116160124/https://www.amazon.com/Encyclopedia-Brown-Case-Treasure-Hunt/dp/B001BUCW3G/ref=tmm_pap_title_1?ie=UTF8&qid=1367936070&sr=8-1|url-status=live |last1=Sobol |first1=Donald J. }}</ref> or send in a 3" by 5" index card with the solution and the contestant's contact information.