6 , ▁the ▁band ▁re - formed ▁tempor arily ▁to ▁perform ▁at ▁the ▁wed ding ▁party ▁of ▁P ink ▁and ▁mot oc ross ▁rac er ▁Care y ▁Hart ▁in ▁Costa ▁Rica . ▁▁▁ 2 0 0 5 – present ▁ ▁Following ▁a ▁two ▁years - hi atus ▁S as cha ▁returned ▁in ▁ 2 0 0 6 ▁with ▁his ▁fourth ▁regular ▁album ▁Open ▁Water . ▁Sch mit z ▁was ▁heavily ▁involved ▁in ▁the ▁album ' s ▁writing ▁and ▁production ▁process , ▁for ▁which ▁he ▁consult ed ▁mus icians ▁Fab io ▁Tr ent ini ▁and ▁Robin ▁Gr ub ert . ▁The ▁album ▁chart ed ▁significantly ▁higher ▁than ▁its ▁prede cess or ▁Sur fin ' ▁on ▁a ▁Back be at ▁( 2 0 0 1 ) ▁throughout ▁Europe , ▁reaching ▁number ▁seven ▁on ▁the ▁German ▁Albums ▁Chart ▁and ▁the ▁top ▁forty ▁in ▁Austria ▁and ▁Switzerland , ▁but ▁is ▁Sch mit z ' s ▁lowest - s elling ▁album , ▁to ▁date . ▁Open ▁Water ▁produced ▁two ▁singles ▁only , ▁including ▁" S low ly " ▁and ▁" Good bye ". ▁ ▁In ▁fall ▁ 2 0 0 6 , ▁a ▁Great est ▁H its ▁compilation ▁was ▁released ▁which ▁reached ▁number ▁six ▁on ▁the ▁German ▁charts ▁and ▁was ▁eventually ▁cert ified ▁plat in um . ▁In ▁ 2 0 0 7 , ▁Sch mit z ▁released ▁" H ide ▁& ▁Se ek ", ▁the ▁theme ▁song ▁for ▁the ▁German ▁motion ▁picture ▁Die ▁drei ▁? ?? ▁– ▁Das ▁Ge heim nis ▁der ▁Ge ister ins el ,