Toz was worried that he was still being watched, and since he didn't know if more people at the guild were involved, like the two thugs who had attacked him, he decided to proceed as usual and head directly for the forest without stopping by the guild in the morning.
If people hadn't tried to kill him in the forest yet, or if they had tried but couldn't find him, there wasn't much of a reason to suspect he would be in more danger now than before. Except maybe because those two thugs failed to kill him.
In any case, if someone desperately wanted to kill him just because he entered the forest, that was almost more of a reason to enter it. Finding out what was going on and putting a stop to those nefarious plans just because the ones who planned it wanted him dead seemed like a good idea to Toz. The group would also get a lot of money since the request reward for investigating Tumbling Thunder Forest continued rising.
