Page 501 - Makino,Tsutusi.DictionaryOfIntermediateJGrammar

sore mo / sore ni 427
(d) %&*Ci&&!E%, ?;k% YYY ~%sosE%C:fi9$9T ~3 9ko
(She was seen by a magazine reporter, and what's worse, a reporter
from a gossip magazine.)
f3 6 L-
%;<+=L T 92%
(el KLL\+M~C:. -~;~~%K$o&~~&IIEEc:+$~~B~LIc<;~~%
3 &I:,
(I was asked to translate a letter when I was busy at the end of the
semester, and what's worse, just before the deadline for my term
paper.)

(Because it was one hundred thousand yen in coins, and what's worse,
(they were) all ten-yen coins, it was terribly heavy.)

1. The phrases or clauses before and after sore mo are connected to the
same noun phrase, verbal, or clause which follows, as in KS(A) - (C).
2. Sore mo usually appears in mid-sentence position although it can appear
as an independent phrase as well, as in (1).

sore ni + hK conj.

(and) in addition; moreover;
additional item or statement furthermore; what's more; on
top of that
[REL. omake ni; shika mo;
sono ue; sore to]