Something is off with Hiro's sense of time. He's constantly late, and almost misses his curfew. Ruli suggests a trip to the library for a change of pace. They meet some unexpected visitors and learn the cause of Hiro's problems.
In exchange, we can't
go through walls anymore.
بالمقابل، لا نستطيع عبور الجدران بعدها
Dafür können wir aber nicht
mehr durch Wände gehen.
A cambio, ya no podemos
atravesar paredes.
A cambio, ya no podemos
atravesar paredes.
Cependant, nous ne pouvons plus
traverser les surfaces.
Però non possiamo più attraversare i muri.
Porém, não conseguimos 
mais atravessar paredes.
А вот сквозь стены уже нельзя пройти.