No. Halsin left the grove on Marpenoth 2. The toll house journal says it was wiped out on Uktar 16. That is a month and 14 days since Halsin left. That means Halsin and company left the grove and went to the temple, and they were there for at least one month and 14 days before they were discovered by goblins, Halsin was captured, the nautiloid crashed and Aradin and his pals returned to the grove.
What the flip made them take 1 month and 14 days? I am reconciling it in my fan fic by having Aradin tell the MCs that they went to the temple, got discovered, and they were chased into the mountains west of the camp. They spent a month and a half being chased all over the Western mountains avoiding drow and goblins.
Then, they were found, a massive number of gobbos were sent out to find them. Halsin was beaten down and taken, though he let them so he could get closer to the cult, and Brian caught. Then Aradin and the rest were pursued for over a day and a half back into the area and to the grove... Or something like that. I haven't worked it all out yet.
