His efforts in the cricket tournament having succeeded, Ciel now has an invitation to a tea party sponsored by Weston College's absolute monarch: the Head Master.
This explains why Sebastian 
couldn't track Derrick down, though.
لكن هذا يفسّر سبب عدم قدرة سيباستيان
على تعقُّب ديريك
Allerdings …
Ahora entiendo que Sebastian
no pudiera detectar a Derrick.
Però...
Se bem que isso explica por que o Sebastian
não conseguiu rastrear o Derrick.
Теперь же…