Sewer-spelunkingsecretagentsMangoandBrashmakeabigsplashinthishilariousnewmysteryinJohnPatrickGreen’sfull-color,laugh-out-loudgraphicnovelseries!Threemillionreaderscan’tbewrong-InvestiGators:TakethePlungeisaperfectcomicforkidreaderstodiveinto!Intheirnextbigadventure,S.U.I.T.headquartersisunderattack,andMangoandBrasharegoingundercoverandundergrounddisguisedascitysewerworkerstounclogastickysituation.ButwhentheirsearchforthecriminalCrackerdilebackfires,thetoiletstheytravelthroughgetblockedandtheInvestiGatorstaketheblameforit!CanMangoandBrashrestoretheirgoodnameandputtherealculpritbehindbarsbeforethewholecityisindeepwater?