The remaining trio, based in Genova, a prolific city for many great bands, veered towards a more aggressive sound and released their masterpiece, Arrow head, in 1972, a five tracks album that's still regarded as one of the finest in its genre. Mainly hard rock based, but with strong progressive influences rather than dull solo parts, the album has in the long Soffici bianchi veli and the softer Cerchio di luce with some jazzy influences are the best cuts.
The band had a good live activity but a short life, and Zoccheddu and Callero formed Duello Madre at the end of 1972, leaving Cucciolo with the name Osage Tribe and a new line-up with ex-Capsicum Red singer/guitarist Red Canzian and bassist Giampiero Marchiani coming from Forlì. This line-up lasted for a short time, Cucciolo was called up in the army, replaced by Enzo Vallicelli (from Hellza Poppin and later with Uno), then Canzian was recruited by Pooh, causing the definitive split of Osage Tribe.
The drummer Cucciolo later played with The Trip after their fourth album (but this line up never recorded) and then Dik Dik.
Bob Callero has had a very active career, with Il Volo and many collaborations as sessionman.