Island of the Jewel
... that medieval Islamic geography placed the Island of the Jewel in the Sea of Darkness, east of the Dragon's Tail?
... that <a class="mw-redirect" href="./Geography_and_cartography_in_medieval_Islam" id="mwCHE" rel="mw:WikiLink" title="Geography and cartography in medieval Islam">medieval Islamic geography</a> placed the <b id="mwCHI"><a href="./Island_of_the_Jewel" id="mwCHM" rel="mw:WikiLink" title="Island of the Jewel">Island of the Jewel</a></b> in the Sea of Darkness, east of the <a href="./Dragon's_Tail_(peninsula)" id="mwCHQ" rel="mw:WikiLink" title="Dragon's Tail (peninsula)">Dragon's Tail</a>?