▁Category : A ust rian ▁male ▁sw imm ers ▁Category : O lymp ic ▁sw imm ers ▁of ▁Austria ▁Category : Sw imm ers ▁at ▁the ▁ 1 9 8 8 ▁Summer ▁Olympics ▁Category : Place ▁of ▁birth ▁missing ▁( l iving ▁people ) <0x0A> </s> ▁The ▁Advent ures ▁of ▁Mary - K ate ▁& ▁Ash ley ▁is ▁a ▁series ▁of ▁musical ▁mystery ▁videos ▁st arring ▁tw in ▁actress es ▁Mary - K ate ▁and ▁Ash ley ▁O ls en . ▁The ▁series ▁was ▁also ▁written ▁as ▁children ' s ▁books . ▁A ▁set ▁of ▁books ▁was ▁written ▁as ▁a ▁companion ▁piece ▁to ▁the ▁show , ▁showing ▁the ▁tw ins ▁on ▁the ▁cover . ▁The ▁video ▁series ▁was ▁distributed ▁by ▁Kid V ision . ▁ ▁Format ▁Each ▁video ▁begins ▁with ▁the ▁girls ▁singing ▁the ▁theme ▁song . ▁Following ▁the ▁theme ▁song , ▁the ▁girls ▁receive ▁a ▁phone ▁call , ▁inform ing ▁them ▁of ▁some ▁ur gent ▁mystery ▁that ▁needs ▁to ▁be ▁solved . ▁Their ▁mot to ▁is ▁" Will ▁solve ▁any ▁crime ▁by ▁d inn ert ime ." ▁Each ▁video ▁features ▁the ▁girls ▁singing ▁multiple ▁songs ▁about ▁the ▁mystery ▁they ▁are ▁working ▁on . ▁They ▁never ▁fail ▁to ▁solve ▁the ▁mystery ▁with ▁their ▁side k ick , ▁Cl ue ▁( a ▁Bass et ▁H ound ), ▁and , ▁indeed , ▁the ▁solution ▁is ▁usually ▁something ▁either ▁very ▁obvious ▁or ▁very ▁trivial , ▁to ▁give ▁the ▁video ▁a ▁hum orous ▁ending . ▁ ▁Plot ▁out lines ▁Each ▁episode ▁is ▁named ▁" The ▁Advent ures