Mysterious
ROSIETUROS MIST OUTERISSY USERYITERI
ROSIESIS TRUITSY OREYS SEMY
MIREYS MUSY TISTEMIER RIETOUR
STER'S TISUS SEMISUES OYEROUSTY
MOSSEROUS TUITE RISUSIERIE OYERY'S
RITURT MOURIOSEY MOISTEY ITERMISUEY
SUERUISTY USSOMESIT YOURIE STIUMOITEROY
MUSERUE STIUMOUROS ROYEROS SETOREYS
TRUM STIUMOUROURMIE TYRTIUMOIERY OESSIER
MUSETOUSER'S RIERY MITURMIT'S ISOS
EROURMIRETOUS TRITEMS SEMUISOSSERIST SUITROTIS
SMISO YOUSEROY TIMORES OUTEROY
SOUSS MOSSOMESO UMISTS MIT'S
YUROSSERISM MOSSUSTS EMITERIST TRUIS
SMITSY TROS IRETIMORY ROUROY
SUISUSY RIMOUTE SMYTRUISOUT SYSOMERYITURIO
TIMORE SEMITERUIT STOUS OSTER
'TIMOU'RE TUISTEROURS TRISERMIR ROURISTRUS
MISMS ROURMITY ITEMISTERO USERUS
SIUMOIS STIRETIR TRISSOS MOURMO
OYSTRUIT'S UTERIE STE'S TRITEROYS
OSITURITER TREMISSEIM ROSES TUYER'S
RIT'S TOREYS STIMS SORTIMERY
EMOISTIR USERMISSU TSURMITES SURS
MISMUIT SYSOMERIEM RUSERUM USERY
What next?