enumerated lengths of tile

in the second-floor hallway

contained all our days for a moment

a capsule spilled open
there were still doors for

97 students

16 teachers
now I don't know any of them
shadows filled and merged

low black clouds

in a crack of still-lit sky
when noticed, vanish
in an after-hours classroom
using an off-limits computer
a clock in the corner of the screen
messaging a friend I can't remember

the sound of a door shutting firmly

when they eventually logged off
who have you forgotten?
a chalkboard erased
dissolved and dispersed
one cloud reversing