Unbeknownst to me at the time, because we had only seen the outside, the surfaces were continuing to fold themselves, to grow on the inside of the column, which was quite a surprising discovery.
Desconhecidas para mim, nessa altura, porque só tínhamos visto a parte exterior, as superfícies continuavam a dobrar-se, estavam a crescer no interior da coluna. o que foi uma descoberta surpreendente.