ðeɪ wɜː stˈoːɹd ɪn θɹˈiː sˈɛpɹət ˈɑːɹkaɪvz ˌɔn ɐn ˌʌpɚ flˈoːɹ, wˌɪtʃ kəlˈæpst wɛn ðə bˈɪldɪŋ wʌz bˈɜːnt.
They were stored in three separate archives on an upper floor, which collapsed when the building was burnt.